subject:(Hydrodynamic Interaction)

Delft University of Technology

1. Liu, Yun (author). Flexible Floating Island.

Degree: 2019, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:f9541b64-8e60-4605-991f-d7ac762b5fb0

► Nowadays, fears over rising sea levels due to global warming have prompted many countries with lands below sea level to find solutions to ensure the… (more)

▼ Nowadays, fears over rising sea levels due to global warming have prompted many countries with lands below sea level to find solutions to ensure the safety of nation and citizen. Furthermore, the development and utilization of marine resources have always been a topic of interest. Due to these necessities, the concept of flexible floating islands that can be used for fish farm, energy islands and residence has emerged. The flexible floating island consists of many smaller identical triangles connected by springs. This design is convenient for installation, disassembly, and diversification of functions. The main objective of this thesis is to investigate and analyze the forces acting on and motions of the flexible floating islands due to the interaction with regular waves; a numerical model is an excellent way to complete that mission. The floating islands in waves that are constrained with mooring lines have translational and rotational motions under the combined effect of hydrodynamic, hydrostatic, gravitational and mooring forces. The approach for solving the forces starts with linear potential theory, which means that uncompressed inviscid flow is assumed. After marking out the identical smaller panels on the wetted surfaces of each small triangle, the interface conditions between the triangle and the fluid are satisfied, thereby obtaining the source strength for each panel. With the expressions for the potentials, all the hydrodynamic coefficients including added mass, damping and wave exciting forces can be evaluated. Finally, the response of islands can be evaluated by using the equations of motions of the island in the time domain and converting them to the frequency domain. Two models are created in this thesis, a single island model and a two-island model, the former focuses on learning the methods for solving the hydromechanics coefficients, and the latter focuses on the hydrodynamic interaction between the two islands. Advisors/Committee Members: Metrikine, Andrei (mentor), Keijdener, Chris (mentor), Pisano, Federico (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: hydromechanics; potential theory; hydrodynamic interaction

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APA (6^th Edition):

Liu, Y. (. (2019). Flexible Floating Island. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:f9541b64-8e60-4605-991f-d7ac762b5fb0

Chicago Manual of Style (16^th Edition):

Liu, Yun (author). “Flexible Floating Island.” 2019. Masters Thesis, Delft University of Technology. Accessed January 25, 2021. http://resolver.tudelft.nl/uuid:f9541b64-8e60-4605-991f-d7ac762b5fb0.

MLA Handbook (7^th Edition):

Liu, Yun (author). “Flexible Floating Island.” 2019. Web. 25 Jan 2021.

Vancouver:

Liu Y(. Flexible Floating Island. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Jan 25]. Available from: http://resolver.tudelft.nl/uuid:f9541b64-8e60-4605-991f-d7ac762b5fb0.

Council of Science Editors:

Liu Y(. Flexible Floating Island. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:f9541b64-8e60-4605-991f-d7ac762b5fb0

University of Tasmania

2. Leong, ZQ. Effects of hydrodynamic interaction on an AUV operating close to a moving submarine.

Degree: 2014, University of Tasmania

URL: https://eprints.utas.edu.au/22899/2/Leong_whole_thesis_ex_pub_mat.pdf ; https://eprints.utas.edu.au/22899/1/Leong_whole_thesis.pdf

► The work detailed in this thesis investigates the behaviour of the hydrodynamic interaction effects acting on an unappended AUV manoeuvring in proximity to a larger… (more)

▼ The work detailed in this thesis investigates the behaviour of the hydrodynamic interaction effects acting on an unappended AUV manoeuvring in proximity to a larger moving underwater vehicle such as a submarine. The investigation examined the steady-state and transient interaction effects on the hydrodynamic coefficients of the AUV as a function of the relative: speed, longitudinal position, lateral position, and size between the two submerged vehicles. The work involved extensive development of Computational Fluid Dynamics (CFD) models to simulate the manoeuvres in order to map the interaction behaviour. Experimental Fluid Dynamics (EFD) involving captive-model tests of the two vehicles were carried out to validate and supplement the CFD data. The results show that the hydrodynamic interaction acts to attract and repel the AUV at the stern and bow regions around the submarine, respectively. The magnitude of these attraction and repulsion interaction effects varied significantly due to small changes in the relative longitudinal position, suggesting the need of an accurate and fast responsive control system for the AUV to adequately maintain its trajectory around the submarine. These adverse interaction effects were found to be minimal around amidships of the moving submarine, suggesting a safe path for the AUV to approach or depart the submarine laterally within that region. In addition, the interaction effects on the hydrodynamic coefficients of the AUV were shown to reduce as the relative speed of the latter increased. Due to the need to simulate large relative motions between the two vehicles, this thesis also investigate and identifies the merits of two dynamic mesh techniques within ANSYS CFX (i.e. Immersed Solids, and AMP Re-Meshing) to simulate multiple bodies in relative motion. Although the numerical models behind the techniques have undergone substantial development in recent years, as they are beta-features in ANSYS CFX there are currently no existing studies demonstrating their capabilities in modelling multiple bodies in relative motion. The developed CFD simulation models are suitable for future work involving appended AUVs and the coupling with a control system for manoeuvring simulations of multiple underwater vehicles.

Subjects/Keywords: Hydrodynamic; Interaction; Underwater; Vehicles; AUV; Submarine; interoperation

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APA (6^th Edition):

Leong, Z. (2014). Effects of hydrodynamic interaction on an AUV operating close to a moving submarine. (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/22899/2/Leong_whole_thesis_ex_pub_mat.pdf ; https://eprints.utas.edu.au/22899/1/Leong_whole_thesis.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Leong, ZQ. “Effects of hydrodynamic interaction on an AUV operating close to a moving submarine.” 2014. Thesis, University of Tasmania. Accessed January 25, 2021. https://eprints.utas.edu.au/22899/2/Leong_whole_thesis_ex_pub_mat.pdf ; https://eprints.utas.edu.au/22899/1/Leong_whole_thesis.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Leong, ZQ. “Effects of hydrodynamic interaction on an AUV operating close to a moving submarine.” 2014. Web. 25 Jan 2021.

Vancouver:

Leong Z. Effects of hydrodynamic interaction on an AUV operating close to a moving submarine. [Internet] [Thesis]. University of Tasmania; 2014. [cited 2021 Jan 25]. Available from: https://eprints.utas.edu.au/22899/2/Leong_whole_thesis_ex_pub_mat.pdf ; https://eprints.utas.edu.au/22899/1/Leong_whole_thesis.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Leong Z. Effects of hydrodynamic interaction on an AUV operating close to a moving submarine. [Thesis]. University of Tasmania; 2014. Available from: https://eprints.utas.edu.au/22899/2/Leong_whole_thesis_ex_pub_mat.pdf ; https://eprints.utas.edu.au/22899/1/Leong_whole_thesis.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Notre Dame

3. Anca Ostace. Numerical Investigation of the Effect of Inertia on the Hydrodynamic Interaction of Microorganisms</h1>.

Degree: Aerospace and Mechanical Engineering, 2015, University of Notre Dame

URL: https://curate.nd.edu/show/5712m615j2n

► Essential to the dynamics of semi-dilute and dense suspensions, the pair-wise hydrodynamic interactions between swimming microorganisms has been analyzed in several studies in the… (more)

Subjects/Keywords: intermediate Reynolds numbers; hydrodynamic interaction; micro-organisms

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APA (6^th Edition):

Ostace, A. (2015). Numerical Investigation of the Effect of Inertia on the Hydrodynamic Interaction of Microorganisms</h1>. (Thesis). University of Notre Dame. Retrieved from https://curate.nd.edu/show/5712m615j2n

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ostace, Anca. “Numerical Investigation of the Effect of Inertia on the Hydrodynamic Interaction of Microorganisms</h1>.” 2015. Thesis, University of Notre Dame. Accessed January 25, 2021. https://curate.nd.edu/show/5712m615j2n.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ostace, Anca. “Numerical Investigation of the Effect of Inertia on the Hydrodynamic Interaction of Microorganisms</h1>.” 2015. Web. 25 Jan 2021.

Vancouver:

Ostace A. Numerical Investigation of the Effect of Inertia on the Hydrodynamic Interaction of Microorganisms</h1>. [Internet] [Thesis]. University of Notre Dame; 2015. [cited 2021 Jan 25]. Available from: https://curate.nd.edu/show/5712m615j2n.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ostace A. Numerical Investigation of the Effect of Inertia on the Hydrodynamic Interaction of Microorganisms</h1>. [Thesis]. University of Notre Dame; 2015. Available from: https://curate.nd.edu/show/5712m615j2n

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology

4. Feenstra, Rinke (author). The evaluation and improvement of the hydrodynamic behaviour of mechanically coupled barges: A novel decommissioning method for oil and gas platforms in the North Sea.

Degree: 2018, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:74b7217f-9315-464e-9b5a-ed3c87a048d4

► Allseas' Pioneering Spirit is the largest heavy lift vessel in the world. It uses its u-shaped bow to sail around an offshore platform and lift… (more)

▼ Allseas' Pioneering Spirit is the largest heavy lift vessel in the world. It uses its u-shaped bow to sail around an offshore platform and lift topsides up to 48.000t in a single lift. Despite being the largest vessel in the world, platforms exist that are simply too heavy, or too large to fit in between the bows of the vessel. Besides, smaller platforms also offer challenges as the capacity of the lifting beams decreases when the beams are extended towards the platform. This results in a set of platforms that cannot be lifted by the vessel. To be able to lift this set of platforms, a novel lifting method is proposed based on the twin-barge float-over method, where two separate vessels lift a topsides in a tandem lift. The method offers a solution to the described challenges as the vessels can be moved closer to the platform, resulting in an optimal utilisation of the lifting beam capacity. To improve the hydrodynamic behaviour of the concept, mechanical connections between the barges are incorporated. Allseas is interested in the technical feasibility of this concept in the North Sea. As an effect, the goal of the thesis is to evaluate and improve the hydrodynamic behaviour of mechanically coupled barges. The aim is to assess the motions of the concept using a dynamical model, improve the concept by changing the dimensions and investigate the workability of the concept in the North Sea. Throughout the decommissioning operation three limits are considered: the impact velocity between the lifting beam and the topsides, the relative pitch between the vessels (leading to stresses in the topsides), and the axial forces in the connection beams. The modelling of the concept is split up in two parts: the determination of the hydrodynamic properties of the vessels, and the influence of the connection beam forces. The potential solver ANSYS Aqwa is used to assess the hydrodynamic parameters, after which a Matlab model is created to include the connections in the model. Since preliminary results showed a standing wave effect between the two vessels for certain frequencies, an additional roll damping of 10% of the critical damping was added and an external damping lid was included. A sensitivity study is performed to investigate the influence of reconfiguring the dimensions and the gap between the barges on the motions. For a certain width over gap ratio, motions tend to resonate for an incoming JONSWAP wave with a peak period of Tp = 7s. When the peak period is increased to 9s this effect becomes invisible and the hydrodynamic behaviour improves with increase of the dimensions. Therefore these are increased (L=275, B=70, T=25m and gap=50m) to assess the workability of the concept in the North Sea. The linear Matlab model is translated from frequency- to time-domain to make a probability distribution of the critical limits. The critical incoming wave angle is 120°, where a significant wave height of 1.3m with a peak period of Tp = 9s results in an infeasible design due to excessive relative pitch. For other… Advisors/Committee Members: Riska, Kaj (mentor), Keijdener, Chris (mentor), Pisano, Federico (mentor), van de Wielen, Vincent (mentor), Bailly Guimaraes, Helio (mentor), Delft University of Technology (degree granting institution).

Subjects/Keywords: Hydrodynamics; Offshore decommissioning; Damping lid; Hydrodynamic interaction

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APA (6^th Edition):

Feenstra, R. (. (2018). The evaluation and improvement of the hydrodynamic behaviour of mechanically coupled barges: A novel decommissioning method for oil and gas platforms in the North Sea. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:74b7217f-9315-464e-9b5a-ed3c87a048d4

Chicago Manual of Style (16^th Edition):

Feenstra, Rinke (author). “The evaluation and improvement of the hydrodynamic behaviour of mechanically coupled barges: A novel decommissioning method for oil and gas platforms in the North Sea.” 2018. Masters Thesis, Delft University of Technology. Accessed January 25, 2021. http://resolver.tudelft.nl/uuid:74b7217f-9315-464e-9b5a-ed3c87a048d4.

MLA Handbook (7^th Edition):

Feenstra, Rinke (author). “The evaluation and improvement of the hydrodynamic behaviour of mechanically coupled barges: A novel decommissioning method for oil and gas platforms in the North Sea.” 2018. Web. 25 Jan 2021.

Vancouver:

Feenstra R(. The evaluation and improvement of the hydrodynamic behaviour of mechanically coupled barges: A novel decommissioning method for oil and gas platforms in the North Sea. [Internet] [Masters thesis]. Delft University of Technology; 2018. [cited 2021 Jan 25]. Available from: http://resolver.tudelft.nl/uuid:74b7217f-9315-464e-9b5a-ed3c87a048d4.

Council of Science Editors:

Feenstra R(. The evaluation and improvement of the hydrodynamic behaviour of mechanically coupled barges: A novel decommissioning method for oil and gas platforms in the North Sea. [Masters Thesis]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:74b7217f-9315-464e-9b5a-ed3c87a048d4

Université de Grenoble

5. Gires, Pierre-Yves. Interaction hydrodynamique entre deux vésicules dans un cisaillement simple : Hydrodynamic interaction between two vesicles in a simple shear flow.

Degree: Docteur es, Physique pour les sciences du vivant, 2012, Université de Grenoble

URL: http://www.theses.fr/2012GRENY062

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Les vésicules sont des bicouches fermées de molécules tensioactives, remplies de liquide, à l'intérieur d'un autre liquide. Leur taille peut être comprise entre dix et… (more)

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Les vésicules sont des bicouches fermées de molécules tensioactives, remplies de liquide, à l'intérieur d'un autre liquide. Leur taille peut être comprise entre dix et 100 microns : elles sont alors dites géantes. Nous nous intéressons à la dynamique de deux de ces objets dans un cisaillement simple, c'est à dire l'écoulement d'un liquide situé entre deux plaques planes se translatant l'une par rapport à l'autre à vitesse et distance constante. Nous commençons par une étude asymptotique, pour des vésicules quasi-sphériques en interaction lointaine. Nous utilisons ensuite un code de calcul basé sur la méthode des éléments de frontière pour étudier le cas de vésicules moins sphériques et plus proches, et comparons les résultats obtenus avec des expériences. Nous présentons enfin comment cette étude peut être utilisée pour prédire certaines propriétés de diffusion d'une suspension de vésicules, dans le régime semi-dilué, où seul le détail des interactions à deux corps est considéré.

Vesicles are closed bilayers of tensioactive molecules, filled with liquid, inside another liquid. Their size can be between 10 and 100 microns : in this case, they are called giant vesicles. We study the dynamic of two of these objects in a simple shear flow, which is the one of a liquid sheared between two walls translating with respect to each other at a constant speed and distance. We begin by an asymptotic study, for quasispherical vesicles in the far field interacting regime. We then use a numerical code based on the boundary element method to study the case of less spherical and closer vesicles, and compare our results with experiments. We finish by presenting how this study can be used to predict some diffusing properties of a sheared suspension of vesicles, in the semidilute regime, where only the details of two body interactions are considered.

Advisors/Committee Members: Misbah, Chaouqi (thesis director), Maitre, Emmanuel (thesis director).

Subjects/Keywords: Rhéologie; Globule rouge; Vésicule; Membrane; Interaction hydrodynamique; Diffusion hydrodynamique; Rheology; Red blood cell; Vesicle; Membrane; Hydrodynamic interaction; Hydrodynamic diffusion

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gires, P. (2012). Interaction hydrodynamique entre deux vésicules dans un cisaillement simple : Hydrodynamic interaction between two vesicles in a simple shear flow. (Doctoral Dissertation). Université de Grenoble. Retrieved from http://www.theses.fr/2012GRENY062

Chicago Manual of Style (16^th Edition):

Gires, Pierre-Yves. “Interaction hydrodynamique entre deux vésicules dans un cisaillement simple : Hydrodynamic interaction between two vesicles in a simple shear flow.” 2012. Doctoral Dissertation, Université de Grenoble. Accessed January 25, 2021. http://www.theses.fr/2012GRENY062.

MLA Handbook (7^th Edition):

Gires, Pierre-Yves. “Interaction hydrodynamique entre deux vésicules dans un cisaillement simple : Hydrodynamic interaction between two vesicles in a simple shear flow.” 2012. Web. 25 Jan 2021.

Vancouver:

Gires P. Interaction hydrodynamique entre deux vésicules dans un cisaillement simple : Hydrodynamic interaction between two vesicles in a simple shear flow. [Internet] [Doctoral dissertation]. Université de Grenoble; 2012. [cited 2021 Jan 25]. Available from: http://www.theses.fr/2012GRENY062.

Council of Science Editors:

Gires P. Interaction hydrodynamique entre deux vésicules dans un cisaillement simple : Hydrodynamic interaction between two vesicles in a simple shear flow. [Doctoral Dissertation]. Université de Grenoble; 2012. Available from: http://www.theses.fr/2012GRENY062

University of Tasmania

6. Jin, Y. Predictions of hydrodynamics of a conceptual FLNG-LNG offloading system.

Degree: 2018, University of Tasmania

URL: https://eprints.utas.edu.au/28437/1/Jin_whole_thesis_ex_pub_mat.pdf ; https://eprints.utas.edu.au/28437/2/Front%20matter%20for%20Jin%20Appendices.pdf ; https://eprints.utas.edu.au/28437/3/Jin_whole_thesis.pdf ; https://eprints.utas.edu.au/28437/4/Jin%20Appendices-28437.pdf ; Jin, Y ORCID: 0000-0002-4336-2680 <https://orcid.org/0000-0002-4336-2680> 2018 , 'Predictions of hydrodynamics of a conceptual FLNG-LNG offloading system', PhD thesis, University of Tasmania.

► The offloading operation between a floating liquefied natural gas (FLNG) facility and an LNG carrier are often of limited duration depending on the sea environment.… (more)

▼ The offloading operation between a floating liquefied natural gas (FLNG) facility and an LNG carrier are often of limited duration depending on the sea environment. In extreme seas or even in moderate sea states, strong hydrodynamic interactions between the FLNG and LNG may occur with resonant motions of the fluid in the gap between the two ships, leading to excessive ship motions and limiting the operability of on-board facilities. Taking an alternative approach of a conventional potential flow (PF) method, this study focuses on the application of solving viscous Reynolds-Averaged Navier-Stokes (RANS) equations for investigating the hydrodynamic interactions of a conceptual side-by-side FLNG-LNG offloading system. To tackle this complex engineering problem, the research has been built up systematically. Initially, predictions of the interaction forces and moments in steady current are carried out wit h a quasistatic approach. The feasibility of RANS computation is demonstrated through validations against existing benchmark experimental results. The effects of varying longitudinal and lateral offsets on the hydrodynamic interactions are analysed. When comparing model and full scale computations, scale effects are evident in the surge force but found to be less influential in the predictions of sway force, roll moment and yaw moment for the cases tested. For analysing the hydrodynamic behaviour of the FLNG-LNG system in waves, a two-phase volume of fluid (VOF) method is adopted together with the fifth-order Stokes wave theory in the unsteady RANS (URANS) computation. This investigation is firstly performed for predicting wave induced loads and motions on single FLNG and single LNG in regular waves for assessing the credibility of the numerical approach. The computed wave loads correlated well with experimental measurements performed at the AMC model test basin. Applying an analogous approach, URANS computations of FLNG-LNG interactions are carried out for different wave frequencies and lateral separations with the vessels constrained in 6 degrees of freedom (DOF) being fixed. Physical model tests on the FLNG-LNG interactions in regular waves are performed for validation. URANS computations show better accuracy over the PF calculations, especially at relatively high wave frequency conditions where the gap wave resonance occurs. It is seen that the gap wave resonance appears when the incident wave frequency approaches the natural frequency of the gap fluid, resulting in significant variation of wave loads in the directions of sway, heave, pitch and yaw. Meanwhile, the lateral separation is found to have an inverse relationship with the natural frequency of the gap fluid. Reduction in the lateral separation shifts the occurrence of gap wave resonance to a higher wave frequency and brings more significant exaggerations on the gap waves and wave loads. When comparing model and full scale wave loads and gap wave responses, the two series of data correlate well implying insignificant influence of scale effects. To…

Subjects/Keywords: FLNG-LNG Interaction; Hydrodynamic Loads; Computational Fluid Dynamics

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APA (6^th Edition):

Jin, Y. (2018). Predictions of hydrodynamics of a conceptual FLNG-LNG offloading system. (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/28437/1/Jin_whole_thesis_ex_pub_mat.pdf ; https://eprints.utas.edu.au/28437/2/Front%20matter%20for%20Jin%20Appendices.pdf ; https://eprints.utas.edu.au/28437/3/Jin_whole_thesis.pdf ; https://eprints.utas.edu.au/28437/4/Jin%20Appendices-28437.pdf ; Jin, Y ORCID: 0000-0002-4336-2680 <https://orcid.org/0000-0002-4336-2680> 2018 , 'Predictions of hydrodynamics of a conceptual FLNG-LNG offloading system', PhD thesis, University of Tasmania.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Jin, Y. “Predictions of hydrodynamics of a conceptual FLNG-LNG offloading system.” 2018. Thesis, University of Tasmania. Accessed January 25, 2021. https://eprints.utas.edu.au/28437/1/Jin_whole_thesis_ex_pub_mat.pdf ; https://eprints.utas.edu.au/28437/2/Front%20matter%20for%20Jin%20Appendices.pdf ; https://eprints.utas.edu.au/28437/3/Jin_whole_thesis.pdf ; https://eprints.utas.edu.au/28437/4/Jin%20Appendices-28437.pdf ; Jin, Y ORCID: 0000-0002-4336-2680 <https://orcid.org/0000-0002-4336-2680> 2018 , 'Predictions of hydrodynamics of a conceptual FLNG-LNG offloading system', PhD thesis, University of Tasmania..

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Jin, Y. “Predictions of hydrodynamics of a conceptual FLNG-LNG offloading system.” 2018. Web. 25 Jan 2021.

Vancouver:

Jin Y. Predictions of hydrodynamics of a conceptual FLNG-LNG offloading system. [Internet] [Thesis]. University of Tasmania; 2018. [cited 2021 Jan 25]. Available from: https://eprints.utas.edu.au/28437/1/Jin_whole_thesis_ex_pub_mat.pdf ; https://eprints.utas.edu.au/28437/2/Front%20matter%20for%20Jin%20Appendices.pdf ; https://eprints.utas.edu.au/28437/3/Jin_whole_thesis.pdf ; https://eprints.utas.edu.au/28437/4/Jin%20Appendices-28437.pdf ; Jin, Y ORCID: 0000-0002-4336-2680 <https://orcid.org/0000-0002-4336-2680> 2018 , 'Predictions of hydrodynamics of a conceptual FLNG-LNG offloading system', PhD thesis, University of Tasmania..

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jin Y. Predictions of hydrodynamics of a conceptual FLNG-LNG offloading system. [Thesis]. University of Tasmania; 2018. Available from: https://eprints.utas.edu.au/28437/1/Jin_whole_thesis_ex_pub_mat.pdf ; https://eprints.utas.edu.au/28437/2/Front%20matter%20for%20Jin%20Appendices.pdf ; https://eprints.utas.edu.au/28437/3/Jin_whole_thesis.pdf ; https://eprints.utas.edu.au/28437/4/Jin%20Appendices-28437.pdf ; Jin, Y ORCID: 0000-0002-4336-2680 <https://orcid.org/0000-0002-4336-2680> 2018 , 'Predictions of hydrodynamics of a conceptual FLNG-LNG offloading system', PhD thesis, University of Tasmania.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University

7. Kuriakose, Vinu P. Floating LNG terminal and LNG carrier interaction analysis for side-by-side offloading operation.

Degree: MS, Ocean Engineering, 2005, Texas A&M University

URL: http://hdl.handle.net/1969.1/2707

► Floating LNG terminals are a relatively new concept with the first such terminal in the world installed this year. The hydrodynamic interaction effects between the… (more)

Subjects/Keywords: Floating; LNG; Terminal; Hydrodynamic; Interaction

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APA (6^th Edition):

Kuriakose, V. P. (2005). Floating LNG terminal and LNG carrier interaction analysis for side-by-side offloading operation. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/2707

Chicago Manual of Style (16^th Edition):

Kuriakose, Vinu P. “Floating LNG terminal and LNG carrier interaction analysis for side-by-side offloading operation.” 2005. Masters Thesis, Texas A&M University. Accessed January 25, 2021. http://hdl.handle.net/1969.1/2707.

MLA Handbook (7^th Edition):

Kuriakose, Vinu P. “Floating LNG terminal and LNG carrier interaction analysis for side-by-side offloading operation.” 2005. Web. 25 Jan 2021.

Vancouver:

Kuriakose VP. Floating LNG terminal and LNG carrier interaction analysis for side-by-side offloading operation. [Internet] [Masters thesis]. Texas A&M University; 2005. [cited 2021 Jan 25]. Available from: http://hdl.handle.net/1969.1/2707.

Council of Science Editors:

Kuriakose VP. Floating LNG terminal and LNG carrier interaction analysis for side-by-side offloading operation. [Masters Thesis]. Texas A&M University; 2005. Available from: http://hdl.handle.net/1969.1/2707

Delft University of Technology

8. Kofou, Stavroula (author). Combined Earthquake & Wave action on Offshore Wind Turbine Monopile Foundation: A numerical investigation of the contribution of hydrodynamic and soil radiation damping to the response of the structure.

Degree: 2019, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:f909e244-2671-42e8-b8a6-6c696b46ebc1

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The offshore wind industry has been extended over the last years in areas of active seismicity, such as East Asia, where the design of offshore… (more)

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The offshore wind industry has been extended over the last years in areas of active seismicity, such as East Asia, where the design of offshore wind turbines becomes significantly challenging, because albeit aerodynamic and hydrodynamic loads mainly act on the offshore structures, earthquake could emerge as a potentially enormous threat. The demand for reliable and economical design of offshore wind turbine foundations has driven the research for analysis of the structural behaviour under the combined action of loads and the study of the parameters that could influence it. The present master thesis deals with the dynamic analysis of the response of an offshore wind turbine monopile, one of the most common types of foundations, subjected to the application of hydrodynamic and earthquake loads. This study focuses on the understanding of the dynamic properties contributing to the dissipation of energy experienced by the structure. More specifically, the sources of damping leading to reduction of the structural vibration in time are investigated, of which the numerical determination is considerably uncertain, while emphasizing on the hydrodynamic and the soil damping. A numerical approach for the estimation of the hydrodynamic viscous damping is presented based on the calculation of the drag coefficient CD and its dependency on the Reynolds number (Re), the Keulegan-Carpenter number (KC) and the surface roughness (k/D). The drag coefficient, and accordingly the hydrodynamic viscous damping, are derived over the length of the monopile where the waves act, highlighting also the consequences of the changes in diameter and depth. Furthermore, the soil radiation damping due to the seismic waves is studied by including the interaction of the soil with the structure. Particularly, the supporting soil is modelled around the monopile with frequency-dependent springs and dampers to represent the soil stiffness and damping, respectively. The estimation of the soil coefficients is accomplished by integrating in the model of the structure, an advanced soil model developed by Dr. J. De Oliveira Barbosa, which gives the dynamic impedance function for the desired band of frequencies. The analysis of the structural response is executed by examining three load cases for the hydrodynamic and earthquake loads. The overall outcome reveals that a noticeable amount of energy is dissipated because of the presence of the soil radiation damping, drawing also the conclusion that the soil-structure interaction should be considered as frequency-dependent during earthquake. Despite the fact that the approach for the estimation of the hydrodynamic viscous damping constitutes a more precise method, its participation in the specific tested cases is limited to the total amount of damping.

Mechanical Engineering

Advisors/Committee Members: Metrikine, Andrei (mentor), Hendrikse, Hayo (graduation committee), Luites, Wout (mentor), Delft University of Technology (degree granting institution).

Subjects/Keywords: Soil-Structure Interaction; soil damping; hydrodynamic damping; Earthquake; frequency-dependent

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kofou, S. (. (2019). Combined Earthquake & Wave action on Offshore Wind Turbine Monopile Foundation: A numerical investigation of the contribution of hydrodynamic and soil radiation damping to the response of the structure. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:f909e244-2671-42e8-b8a6-6c696b46ebc1

Chicago Manual of Style (16^th Edition):

Kofou, Stavroula (author). “Combined Earthquake & Wave action on Offshore Wind Turbine Monopile Foundation: A numerical investigation of the contribution of hydrodynamic and soil radiation damping to the response of the structure.” 2019. Masters Thesis, Delft University of Technology. Accessed January 25, 2021. http://resolver.tudelft.nl/uuid:f909e244-2671-42e8-b8a6-6c696b46ebc1.

MLA Handbook (7^th Edition):

Kofou, Stavroula (author). “Combined Earthquake & Wave action on Offshore Wind Turbine Monopile Foundation: A numerical investigation of the contribution of hydrodynamic and soil radiation damping to the response of the structure.” 2019. Web. 25 Jan 2021.

Vancouver:

Kofou S(. Combined Earthquake & Wave action on Offshore Wind Turbine Monopile Foundation: A numerical investigation of the contribution of hydrodynamic and soil radiation damping to the response of the structure. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Jan 25]. Available from: http://resolver.tudelft.nl/uuid:f909e244-2671-42e8-b8a6-6c696b46ebc1.

Council of Science Editors:

Kofou S(. Combined Earthquake & Wave action on Offshore Wind Turbine Monopile Foundation: A numerical investigation of the contribution of hydrodynamic and soil radiation damping to the response of the structure. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:f909e244-2671-42e8-b8a6-6c696b46ebc1

Virginia Tech

9. Cole, Robert Edward. Numerical Modeling of Air Cushion Vehicle Flexible Seals.

Degree: PhD, Aerospace Engineering, 2018, Virginia Tech

URL: http://hdl.handle.net/10919/83828

► Air cushion vehicle flexible seals operate in a complex and chaotic environment dominated by fluid-structure interaction. An efficient means to explore interdependencies between various governing… (more)

▼ Air cushion vehicle flexible seals operate in a complex and chaotic environment dominated by fluid-structure interaction. An efficient means to explore interdependencies between various governing parameters that affect performance is through high fidelity numerical simulation. As previous numerical efforts have employed separate iterative partitioned solvers, or have implemented simplified physics, the approaches have been complex, computationally expensive, or of limited utility. This research effort performs numerical simulations to verify and validate the commercial multi-physics tool STAR-CCM+ as a stand-alone partitioned approach for fluid-structure interaction problems with or without a free surface. A dimensional analysis is first conducted to identify potential non-dimensional forms of parameters related to seal resistance. Then, an implicit, Reynolds-averaged Navier-Stokes finite volume fluid solver is coupled to an implicit, nonlinear finite element structural solver to successfully replicate benchmark results for an elastic beam in unsteady laminar flow. To validate the implementation as a seal parameter exploratory tool, a planer bow seal model is developed and results are obtained for various cushion pressures and inflow speeds. Previous numerical and experimental results for deflection and resistance are compared, showing good agreement. An uncertainty analysis for inflow velocity reveals an inversely proportional resistance dependency. Using Abaqus/Explicit, methodologies are also developed for a two-way, loosely coupled explicit approach to large deformation fluid-structure interaction problems, with and without a free surface. Following numerous verification and validation problems, Abaqus is ultimately abandoned due to the inability to converge the fluid pressure field and achieve steady state. This work is a stepping stone for future researchers having interests in ACV seal design and other large deformation, fluid-structure interaction problems. By modeling all necessary physics within a verified and validated stand-alone approach, a designer's ability to comprehensively investigate seal geometries and interactions has never been more promising. Advisors/Committee Members: Neu, Wayne L. (committeechair), Paterson, Eric G. (committee member), Wang, Kevin Guanyuan (committee member), Smith, Richard W. (committee member).

Subjects/Keywords: fluid-structure interaction; computational fluid dynamics; hydrodynamic resistance; air cushion vehicles

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Cole, R. E. (2018). Numerical Modeling of Air Cushion Vehicle Flexible Seals. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/83828

Chicago Manual of Style (16^th Edition):

Cole, Robert Edward. “Numerical Modeling of Air Cushion Vehicle Flexible Seals.” 2018. Doctoral Dissertation, Virginia Tech. Accessed January 25, 2021. http://hdl.handle.net/10919/83828.

MLA Handbook (7^th Edition):

Cole, Robert Edward. “Numerical Modeling of Air Cushion Vehicle Flexible Seals.” 2018. Web. 25 Jan 2021.

Vancouver:

Cole RE. Numerical Modeling of Air Cushion Vehicle Flexible Seals. [Internet] [Doctoral dissertation]. Virginia Tech; 2018. [cited 2021 Jan 25]. Available from: http://hdl.handle.net/10919/83828.

Council of Science Editors:

Cole RE. Numerical Modeling of Air Cushion Vehicle Flexible Seals. [Doctoral Dissertation]. Virginia Tech; 2018. Available from: http://hdl.handle.net/10919/83828

University of Tasmania

10. Sembukutti Vidanelage, BNJ. Hydrodynamic interaction during tug-ship operations.

Degree: 2018, University of Tasmania

URL: https://eprints.utas.edu.au/28467/1/Sembukutti_Vidanelage_whole_thesis_ex_pub_mat.pdf ; https://eprints.utas.edu.au/28467/2/Sembukutti_Vidanelage_whole_thesis.pdf

► The hydrodynamic interaction between two vessels operating in close proximity can affect their safety and handling, especially if the vessels are significantly different in size,… (more)

▼ The hydrodynamic interaction between two vessels operating in close proximity can affect their safety and handling, especially if the vessels are significantly different in size, for example when a tug is assisting a large ship. During such operations, the drift-angle of the tug and lateral distance between the vessels are frequently varied to ensure accurate course keeping and safety. This can result in unsteady hydrodynamic interaction effects induced on the vessels, which in turn can adversely affect their ability to maintain course and safety, especially for the smaller tug. Hence, knowledge of the hydrodynamic loads acting on the tug under these conditions is of significant practical value to the tug operator in order to avoid collision, capsizing or being run over. However, there are limited comprehensive studies to date characterising the interaction behaviour on a tug manoeuvring in close proximity to a large ship. This project investigates the hydrodynamic interaction behaviour acting on a tug during ship-assist manoeuvres in order to establish safe operational envelopes using full scale validated Computational Fluid Dynamics (CFD) simulations. The investigation included quantifying the interaction effects on the tug due to changes in the vessel speeds, the longitudinal and lateral location relative to the ship, the drift-angle of the tug, and the relative size between the vessels. The CFD model was validated at model-scale using experiments performed in the model test basin at the Australian Maritime College (AMC), which were then extended to represent full-scale operations. Thus, the scaling effects and non-dimensionalisation approach used to characterise the hydrodynamic behaviour for vessels of different sizes, ratios, and separations were investigated and verified. Different numerical approaches (CFD and potential flow solvers), and simulation conditions and settings within the respective approaches were also examined. The findings were used to identify guiding principles to achieve accurate numerical simulation results for hydrodynamic interaction effects during tug-ship operations. The operational implications on a tug during ship-assist manoeuvres are discussed based on the hydrodynamic interaction data obtained through the CFD simulations. The hydrodynamic interaction data is consolidated into Hydrodynamic Interaction Region Plots (HIRP), which are nondimensionalised based on the size and speed of the vessels and can thus be used by tug operators to determine the actual interaction forces and moments on a tug for different drift angles and locations relative to the ship for a given forward speed. This enables tug operators to determine the safe operational envelopes specific to the vessels in question and their prevailing conditions. In future studies, the results of this project can be integrated into ship/tug handling simulators by replacing their existing interaction modules using new algorithm developed through non-linear regression analysis of the data consolidated within the HIRPs…

Subjects/Keywords: Tug-ship interaction; hydrodynamic interaction region plots; tug safety; close quarter maneouvers

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sembukutti Vidanelage, B. (2018). Hydrodynamic interaction during tug-ship operations. (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/28467/1/Sembukutti_Vidanelage_whole_thesis_ex_pub_mat.pdf ; https://eprints.utas.edu.au/28467/2/Sembukutti_Vidanelage_whole_thesis.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Sembukutti Vidanelage, BNJ. “Hydrodynamic interaction during tug-ship operations.” 2018. Thesis, University of Tasmania. Accessed January 25, 2021. https://eprints.utas.edu.au/28467/1/Sembukutti_Vidanelage_whole_thesis_ex_pub_mat.pdf ; https://eprints.utas.edu.au/28467/2/Sembukutti_Vidanelage_whole_thesis.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Sembukutti Vidanelage, BNJ. “Hydrodynamic interaction during tug-ship operations.” 2018. Web. 25 Jan 2021.

Vancouver:

Sembukutti Vidanelage B. Hydrodynamic interaction during tug-ship operations. [Internet] [Thesis]. University of Tasmania; 2018. [cited 2021 Jan 25]. Available from: https://eprints.utas.edu.au/28467/1/Sembukutti_Vidanelage_whole_thesis_ex_pub_mat.pdf ; https://eprints.utas.edu.au/28467/2/Sembukutti_Vidanelage_whole_thesis.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Sembukutti Vidanelage B. Hydrodynamic interaction during tug-ship operations. [Thesis]. University of Tasmania; 2018. Available from: https://eprints.utas.edu.au/28467/1/Sembukutti_Vidanelage_whole_thesis_ex_pub_mat.pdf ; https://eprints.utas.edu.au/28467/2/Sembukutti_Vidanelage_whole_thesis.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Mississippi State University

11. Zhang, Yue. Toward a molecular mechanism of phase separation in disordered elastin-like proteins.

Degree: PhD, Chemistry, 2017, Mississippi State University

URL: http://sun.library.msstate.edu/ETD-db/theses/available/etd-10202017-102149/ ;

► Since the last decade, an increasing number of proteins have been shown to be capable of undergoing reversible liquid-liquid phase separation (LLPS) in response… (more)

▼ Since the last decade, an increasing number of proteins have been shown to be capable of undergoing reversible liquid-liquid phase separation (LLPS) in response to an external stimulus, and the resulting protein-rich phase (coacervate) is considered as one of the main components of membrane-less organelles. Most of these proteins are intrinsically disordered proteins (IDPs) or contain intrinsically disordered regions. More importantly, LLPS often plays an important role in cellular signaling and development of cells and tissues. However, the molecular mechanisms underlying LLPS of proteins remain poorly understood. Elastin-like proteins (ELPs), a class of IDPs derived from the hydrophobic domains of tropoelastin, are known to undergo LLPS reversibly above a concentration-dependent transition temperature (T<i><sub>T</i></sub>), allowing ELPs to be a promising thermo-responsive drug delivery vector for treating cancer. Previous studies have suggested that, as temperature increases, ELPs experience an increased propensity for type II beta-turns. Our hypothesis is that the interaction is initiated at the beta-turn positions. In this work, integrative approaches including experimental and computational methods were employed to study the early stages of ELP phase separation. Using nuclear magnetic resonance spectroscopy (NMR), and paramagnetic relaxation enhancement (PRE), we have characterized structural properties of self-association in several ELPs. NMR chemical shifts suggest that ELPs adopt a beta-turn conformation even at temperatures below the T<i><sub>T</i></sub>. The intermolecular PRE reveals there is a stronger interaction between the higher beta-turn propensity regions. Building on this observation, a series of structural ensembles were generated for ELP incorporating differing amounts of beta-turn bias, from 1% to 90%. To mimic the early stages of the phase change, two monomers were paired, assuming preferential interaction at beta-turn regions. Following dimerization, the ensemble-averaged hydrodynamic properties were calculated for each degree of beta-turn bias, and results were compared with analytical ultracentrifugation (AUC) experiments at various temperatures. The ensemble calculation reveals that accessible surface area changes dramatically as oligomers are formed from monomers with a high beta-turn content. Together, these observations suggest a model where ELP self-association is initiated at beta-turn positions, where the driving force of phase separation is solvent exclusion due to changes in the hydrophobic accessible surface area. Advisors/Committee Members: Nicholas C. Fitzkee (chair), John J. Correia (committee member), Joseph P. Emerson (committee member), Debra Ann Mlsna (committee member), Todd E. Mlsna (committee member).

Subjects/Keywords: NMR; PRE; hydrodynamic simulation; AUC; Monte-Carlo simulation; protein-protein interaction; disordered protein; EPR

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zhang, Y. (2017). Toward a molecular mechanism of phase separation in disordered elastin-like proteins. (Doctoral Dissertation). Mississippi State University. Retrieved from http://sun.library.msstate.edu/ETD-db/theses/available/etd-10202017-102149/ ;

Chicago Manual of Style (16^th Edition):

Zhang, Yue. “Toward a molecular mechanism of phase separation in disordered elastin-like proteins.” 2017. Doctoral Dissertation, Mississippi State University. Accessed January 25, 2021. http://sun.library.msstate.edu/ETD-db/theses/available/etd-10202017-102149/ ;.

MLA Handbook (7^th Edition):

Zhang, Yue. “Toward a molecular mechanism of phase separation in disordered elastin-like proteins.” 2017. Web. 25 Jan 2021.

Vancouver:

Zhang Y. Toward a molecular mechanism of phase separation in disordered elastin-like proteins. [Internet] [Doctoral dissertation]. Mississippi State University; 2017. [cited 2021 Jan 25]. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-10202017-102149/ ;.

Council of Science Editors:

Zhang Y. Toward a molecular mechanism of phase separation in disordered elastin-like proteins. [Doctoral Dissertation]. Mississippi State University; 2017. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-10202017-102149/ ;

University of Alberta

12. Shahalami, Seyedehmansoureh. Study of non-equilibrium interactions between an air bubble and a hydrophilic/hydrophobic solid surface with the non-linearized Stokes-Reynolds-Young-Laplace model (NSRYL model).

Degree: PhD, Department of Chemical and Materials Engineering, 2014, University of Alberta

URL: https://era.library.ualberta.ca/files/ch702q653k

► The interaction between bubbles and solid surfaces is important to a broad range of industrial and biological processes. Various experimental techniques have been developed to… (more)

▼ The interaction between bubbles and solid surfaces is important to a broad range of industrial and biological processes. Various experimental techniques have been developed to measure the interactions of bubbles approaching solids in a liquid. In this thesis the consistency and accuracy of such measurement are tested against Stokes-Reynolds-Young-Laplace model in which the augmented Young Laplace equation is linearized within the interaction zone. The main focus of this thesis is to model thin liquid film drainage using the non-linearized Young Laplace equation in combination with the Stokes Reynolds equation. The scaled equations of the non-linearized SRYL model do not have a universal nature and depend on the physical parameters of system via capillary number. The numerical results show that in contrast to the linearized SRYL model, the hydrodynamic resistance force predicted from the non-linearized SRYL model strongly depends on the capillary number, Ca. The non-linearized SRYL model is compared with the linearized SRYL model at a broad range of capillary number from 10-8 to 10-3. The numerical results show that at low Ca number of 10-8 and smaller, both the non-linearized and linearized SRYL models lead to the same prediction for bubble deformation, time dependent force and hydrodynamic force. Therefore, over this range of Ca number both the non-linearized and linearized SRYL models can be confidently used to obtain the spatial and temporal evolutions of the film profile, once these models are shown to be able to give an accurate prediction of time dependent force profiles. For systems of Ca number larger than 10-8, the linearized SRYL model predicts a stronger hydrodynamic repulsive force, and the maximum difference in prediction between the two models occurs at the Ca number around ~ 3.4×10-5. The numerical results show that in comparison with the non-linearized SRYL model at the same rmax (the boundary of the solution domain), the linearized SRYL model overestimates the hydrodynamic resistance force for the Ca numbers tested which in turn influences the prediction of bubble deformation and time dependent force profiles. However over this high Ca number range, both the non-linearized and linearized SRYL models can predict the same time dependent force profiles with different overlaps (different adjustable parameters), while there are differences in the prediction of bubble shape and hydrodynamic repulsive force. Therefore, even if the linearized SRYL model is shown to be able to give an accurate prediction for time variations of the interaction forces over this range of Ca numbers, we cannot confidently use the linearized SRYL model to predict the spatial and temporal evolutions of the shape of the film trapped between interacting interfaces. Validation of simulation results by thin film profile measurement using thin film force apparatus (TFFA), conclude that the non-linearized SRYL model is more accurate for high Ca number systems. For a system of very high capillary numbers the non-linearized SRYL model…

Subjects/Keywords: film drainage dynamics; Bubble-particle interaction; induction time; hydrodynamic force; hydrophobicity; critical film thickness

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Shahalami, S. (2014). Study of non-equilibrium interactions between an air bubble and a hydrophilic/hydrophobic solid surface with the non-linearized Stokes-Reynolds-Young-Laplace model (NSRYL model). (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/ch702q653k

Chicago Manual of Style (16^th Edition):

Shahalami, Seyedehmansoureh. “Study of non-equilibrium interactions between an air bubble and a hydrophilic/hydrophobic solid surface with the non-linearized Stokes-Reynolds-Young-Laplace model (NSRYL model).” 2014. Doctoral Dissertation, University of Alberta. Accessed January 25, 2021. https://era.library.ualberta.ca/files/ch702q653k.

MLA Handbook (7^th Edition):

Shahalami, Seyedehmansoureh. “Study of non-equilibrium interactions between an air bubble and a hydrophilic/hydrophobic solid surface with the non-linearized Stokes-Reynolds-Young-Laplace model (NSRYL model).” 2014. Web. 25 Jan 2021.

Vancouver:

Shahalami S. Study of non-equilibrium interactions between an air bubble and a hydrophilic/hydrophobic solid surface with the non-linearized Stokes-Reynolds-Young-Laplace model (NSRYL model). [Internet] [Doctoral dissertation]. University of Alberta; 2014. [cited 2021 Jan 25]. Available from: https://era.library.ualberta.ca/files/ch702q653k.

Council of Science Editors:

Shahalami S. Study of non-equilibrium interactions between an air bubble and a hydrophilic/hydrophobic solid surface with the non-linearized Stokes-Reynolds-Young-Laplace model (NSRYL model). [Doctoral Dissertation]. University of Alberta; 2014. Available from: https://era.library.ualberta.ca/files/ch702q653k

NSYSU

13. Chen, Wei-Ting. A Numerical Study on Coupled Current and Wave Characteristics in Nanwan Bay.

Degree: Master, Marine Environment and Engineering, 2018, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0612118-132958

► Taiwan suffered several typhoons every single year. The change in atmospheric pressure and strong winds caused by typhoons have a great impact on the sea… (more)

Subjects/Keywords: Rogue wave; Hydrodynamic model; Freak wave; Wave-current interaction; Nanwan; Wind wave model

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chen, W. (2018). A Numerical Study on Coupled Current and Wave Characteristics in Nanwan Bay. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0612118-132958

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chen, Wei-Ting. “A Numerical Study on Coupled Current and Wave Characteristics in Nanwan Bay.” 2018. Thesis, NSYSU. Accessed January 25, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0612118-132958.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chen, Wei-Ting. “A Numerical Study on Coupled Current and Wave Characteristics in Nanwan Bay.” 2018. Web. 25 Jan 2021.

Vancouver:

Chen W. A Numerical Study on Coupled Current and Wave Characteristics in Nanwan Bay. [Internet] [Thesis]. NSYSU; 2018. [cited 2021 Jan 25]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0612118-132958.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chen W. A Numerical Study on Coupled Current and Wave Characteristics in Nanwan Bay. [Thesis]. NSYSU; 2018. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0612118-132958

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology

14. Thumann, V.M. (author). Hydrodynamic forces on slender cylinders oscillating transversely in a current.

Degree: 1991, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:1346ca16-4fd7-4e0e-abe1-372307928f6b

►

The study of the hydrodynamic interaction of cables has become more important in recent years since umbilical cables of more than 3000 meters length have… (more)

Subjects/Keywords: interaction of cables; hydrodynamic; vibrating; NOSDA

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Thumann, V. M. (. (1991). Hydrodynamic forces on slender cylinders oscillating transversely in a current. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:1346ca16-4fd7-4e0e-abe1-372307928f6b

Chicago Manual of Style (16^th Edition):

Thumann, V M (author). “Hydrodynamic forces on slender cylinders oscillating transversely in a current.” 1991. Masters Thesis, Delft University of Technology. Accessed January 25, 2021. http://resolver.tudelft.nl/uuid:1346ca16-4fd7-4e0e-abe1-372307928f6b.

MLA Handbook (7^th Edition):

Thumann, V M (author). “Hydrodynamic forces on slender cylinders oscillating transversely in a current.” 1991. Web. 25 Jan 2021.

Vancouver:

Thumann VM(. Hydrodynamic forces on slender cylinders oscillating transversely in a current. [Internet] [Masters thesis]. Delft University of Technology; 1991. [cited 2021 Jan 25]. Available from: http://resolver.tudelft.nl/uuid:1346ca16-4fd7-4e0e-abe1-372307928f6b.

Council of Science Editors:

Thumann VM(. Hydrodynamic forces on slender cylinders oscillating transversely in a current. [Masters Thesis]. Delft University of Technology; 1991. Available from: http://resolver.tudelft.nl/uuid:1346ca16-4fd7-4e0e-abe1-372307928f6b

15. Shrestha, Bishwash. Qualitative and Quantitative Study of the Flow Physics in the Vicinity of an Oscillating Plate in Viscous Fluids.

Degree: 2016, University of Nevada – Reno

URL: http://hdl.handle.net/11714/2351

► In this thesis, we study the fluid-structure interaction problem of a submerged rigid plate undergoing harmonic oscillations in a still, Newtonian, viscous fluid. We conduct… (more)

Subjects/Keywords: flow dynamics; Fluid-structure interaction; hydrodynamic function; oscillating plate; Particle Image Velocimetry; Regime

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Shrestha, B. (2016). Qualitative and Quantitative Study of the Flow Physics in the Vicinity of an Oscillating Plate in Viscous Fluids. (Thesis). University of Nevada – Reno. Retrieved from http://hdl.handle.net/11714/2351

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Shrestha, Bishwash. “Qualitative and Quantitative Study of the Flow Physics in the Vicinity of an Oscillating Plate in Viscous Fluids.” 2016. Thesis, University of Nevada – Reno. Accessed January 25, 2021. http://hdl.handle.net/11714/2351.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Shrestha, Bishwash. “Qualitative and Quantitative Study of the Flow Physics in the Vicinity of an Oscillating Plate in Viscous Fluids.” 2016. Web. 25 Jan 2021.

Vancouver:

Shrestha B. Qualitative and Quantitative Study of the Flow Physics in the Vicinity of an Oscillating Plate in Viscous Fluids. [Internet] [Thesis]. University of Nevada – Reno; 2016. [cited 2021 Jan 25]. Available from: http://hdl.handle.net/11714/2351.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Shrestha B. Qualitative and Quantitative Study of the Flow Physics in the Vicinity of an Oscillating Plate in Viscous Fluids. [Thesis]. University of Nevada – Reno; 2016. Available from: http://hdl.handle.net/11714/2351

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology

16. Doss, Arnav (author). Impact of box-type floating breakwater on motion response of hydrodynamically coupled floating platforms downstream.

Degree: 2020, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:1d2dbe5d-d2d5-47d6-a218-081f007060ec

►

Floating breakwaters are applicable in several offshore applications to protect downstream structures from excessive wave loads and to reduce their motion response. This thesis investigates… (more)

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Floating breakwaters are applicable in several offshore applications to protect downstream structures from excessive wave loads and to reduce their motion response. This thesis investigates the impact of the leading platform, functionally a breakwater, on the RAOs and response of the platforms behind it in frequency domain. The structures are only hydrodynamically coupled. All models were analysed for head waves only. Variables in model design are investigated using a combination of diffraction software and solving equations of motion in six degrees of freedom for each body. The variables are the gap between the breakwater and the first platform, the width, i.e. side perpendicular to wave direction, of the breakwater and the gap between platforms. Base case dimensions for the platforms and breakwater are chosen based on the natural frequencies and wave transmission coefficients respectively. These choices are made to function well for the wave spectrum at the chosen site. Each case analysed included a breakwater and 10 platforms downstream of it. It was found that he imperfect efficiency of a breakwater means that the first few platforms behind it act as breakwaters too; albeit for much lower wave energies. Increasing the gap between the breakwater and the first platform behind it results in a decrease in RAO of the platforms due to increasing hydrodynamic coupling. The impact on pitch RAOs is greater than the impact on the heave RAOs. Increasing the width of the breakwater results in minimal reduction in RAOs of the platforms behind it at large gap sizes. At small gap sizes, there is an adverse relationship. Hydrodynamic coupling between the platforms can lead to shared natural frequencies within the design frequency range, leading to a large motion response. This can be prevented by changing the gap size and thereby the hydrodynamic coupling and moving the natural frequency outside of the design range. A breakwater and multiple platforms downstream of dimension L=100 m, B=100 m, T=5 m, with a gap of 80 m between the breakwater and platforms and 100 m between the platforms themselves was shown to effectively reduce the motions of the downstream platforms. The first few platforms exhibit higher heave than the other platforms, but similar pitch to the other platforms. Therefore, their use cases in a floating city must be chosen accordingly. The potential negative impacts of hydrodynamic coupling between the platforms means that the platforms must be further apart from each other, resulting in floating cities with a much larger footprint than previously expected. Further research into the motion response for 2D structure layout and different wave directions would be interesting follow-ups to this thesis.

Offshore and Dredging Engineering

Advisors/Committee Members: Schreier, S. (mentor), van Kessel, J.L.F. (mentor), Westerweel, J. (graduation committee), Antonini, A. (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: floating; breakwater; Hydrodynamic interaction; floating city; floating breakwater; Coupling; motion; response; Blue21; Frequency domain

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Doss, A. (. (2020). Impact of box-type floating breakwater on motion response of hydrodynamically coupled floating platforms downstream. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:1d2dbe5d-d2d5-47d6-a218-081f007060ec

Chicago Manual of Style (16^th Edition):

Doss, Arnav (author). “Impact of box-type floating breakwater on motion response of hydrodynamically coupled floating platforms downstream.” 2020. Masters Thesis, Delft University of Technology. Accessed January 25, 2021. http://resolver.tudelft.nl/uuid:1d2dbe5d-d2d5-47d6-a218-081f007060ec.

MLA Handbook (7^th Edition):

Doss, Arnav (author). “Impact of box-type floating breakwater on motion response of hydrodynamically coupled floating platforms downstream.” 2020. Web. 25 Jan 2021.

Vancouver:

Doss A(. Impact of box-type floating breakwater on motion response of hydrodynamically coupled floating platforms downstream. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Jan 25]. Available from: http://resolver.tudelft.nl/uuid:1d2dbe5d-d2d5-47d6-a218-081f007060ec.

Council of Science Editors:

Doss A(. Impact of box-type floating breakwater on motion response of hydrodynamically coupled floating platforms downstream. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:1d2dbe5d-d2d5-47d6-a218-081f007060ec

17. Gao, Yanfeng. Inertial migration of particles in microchannel flows : Migration inertielle de particules en écoulement dans des microcanaux.

Degree: Docteur es, Dynamique des Fluides, 2017, Toulouse, INSA

URL: http://www.theses.fr/2017ISAT0010

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Cette thèse a pour objectif de mieux comprendre les mécanismes physiques qui contrôlent les trajectoires de particules anisotropes dans des écoulements confinés, afin d’en améliorer… (more)

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Cette thèse a pour objectif de mieux comprendre les mécanismes physiques qui contrôlent les trajectoires de particules anisotropes dans des écoulements confinés, afin d’en améliorer la prédiction. Nous avons dans un premier temps développé des outils expérimentaux basés sur la microscopie et le traitement d’images afin d’analyser les positions de particules en écoulement confiné dans des microcanaux de section carrée. Ces outils ont ensuite permis l’obtention de résultats originaux sur la migration latérale de particules sphériques dans des écoulements faiblement inertiels. Nous avons montré en particulier que les particules migrent au centre du canal à faible nombre de Reynolds et à proximité du centre de chaque face à Reynolds plus élevé et que ces deux régimes co-existent pour des Reynolds intermédiaires. Parallèlement à leur migration latérale, les particules en écoulement confiné peuvent s’espacer régulièrement sous certaines conditions pour former des trains. Ce travail a donc consisté à mener une étude statistique pour quantifier et localiser la formation des trains. Il a été montré que la formation des trains était contrôlée par la configuration de l’écoulement dans le sillage des particules et que leurs caractéristiques, i.e., le pourcentage de particules en trains et la distance interparticulaire, étaient fonction du nombre de Reynolds particulaire. Enfin, des résultats préliminaires sur le cas d’écoulements bi-disperses ont été obtenus. Pour terminer, les perspectives et développements futurs de ce travail sont dégagés.

This thesis aims to better understand the physical mechanism controlling the trajectories of particles in confined flows in order to improve predictive models. In the first step we have developed experimental tools based on microscopy and image analysis in order to identify the particles positions in confined flows in square section microchannels. These tools have then permitted to obtain original results on the lateral migration of spherical particles in flows at low inertia. In particular we have shown that neutrally buoyant particles in square channels are focused at channel center at low Reynolds number and at four channel faces at high Reynolds, and that there is a co-existence of the two regimes for intermediate Reynolds. In addition to their lateral migration, under certain conditions, particles can also align in the flow direction to form trains of evenly spaced particles. This work has thus been devoted to the statistical study on the quantification and localization of the train formation and configuration. It has been shown that the formation of trains is controlled by the flow configuration in the wake of the particles, and that the train characteristics, i.e., the fraction of particles in trains and the interparticle distance, are functions of the particle Reynolds number. Finally, preliminary results on flows of bidisperse suspensions have been obtained. To conclude, the perspectives and future developments of this work are presented.

Advisors/Committee Members: Baldas, Lucien (thesis director), Magaud, Pascale (thesis director).

Subjects/Keywords: Focalisation inertielle; Microfluidique; Interaction hydrodynamique; Suspensions; Microscopie; Inertial focusing; Microfluidics; Hydrodynamic interaction; Suspensions; Microscopy; 532; 532.3

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APA (6^th Edition):

Gao, Y. (2017). Inertial migration of particles in microchannel flows : Migration inertielle de particules en écoulement dans des microcanaux. (Doctoral Dissertation). Toulouse, INSA. Retrieved from http://www.theses.fr/2017ISAT0010

Chicago Manual of Style (16^th Edition):

Gao, Yanfeng. “Inertial migration of particles in microchannel flows : Migration inertielle de particules en écoulement dans des microcanaux.” 2017. Doctoral Dissertation, Toulouse, INSA. Accessed January 25, 2021. http://www.theses.fr/2017ISAT0010.

MLA Handbook (7^th Edition):

Gao, Yanfeng. “Inertial migration of particles in microchannel flows : Migration inertielle de particules en écoulement dans des microcanaux.” 2017. Web. 25 Jan 2021.

Vancouver:

Gao Y. Inertial migration of particles in microchannel flows : Migration inertielle de particules en écoulement dans des microcanaux. [Internet] [Doctoral dissertation]. Toulouse, INSA; 2017. [cited 2021 Jan 25]. Available from: http://www.theses.fr/2017ISAT0010.

Council of Science Editors:

Gao Y. Inertial migration of particles in microchannel flows : Migration inertielle de particules en écoulement dans des microcanaux. [Doctoral Dissertation]. Toulouse, INSA; 2017. Available from: http://www.theses.fr/2017ISAT0010

Delft University of Technology

18. Drost, Lisanne (author). The Submerged Floating Tunnel: An experimental study on the hydrodynamics and kinematics of a submerged rectangular cylinder in a wave-current environment.

Degree: 2019, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:91a1c1bf-474b-4952-9485-c53f2fe353f0

► This study presents the results of small scale flume experiments on a submerged rectangular cylinder subjected to a current, regular wave and combined wave-current environment.… (more)

▼ This study presents the results of small scale flume experiments on a submerged rectangular cylinder subjected to a current, regular wave and combined wave-current environment. The objective of the study is to gain more knowledge about the hydrodynamics around and the kinematics of a submerged structure, to give a contribute to the research field of the submerged floating tunnel. For this study a rectangular cylinder with an aspect ratio (breadth-depth) of 2.5 is used. Two relative submergence depths (flume depth/model submergence) of 2.75 and 1.63 are tested. For all tests a still water depth of 0.7 m is applied. Waves resulting in very low KC numbers of <1 for regular waves and KC[1+U_c/U_m ]<2 for combined waves-current are generated. To create a combined wave-current environment, a current is created in the flume, to which waves are added by the wave generator. The water velocity is measured in front of the model. To approximate the water velocity at the model, a time/phase shift is added to the velocity signal. Linear wave theory is applied to approximate the amplitudes of the orbital velocities at the depth of the model. For the first part of the study, on the hydrodynamic forces, the cylinder is rigidly fixed in the flume. Due to the inertia dominance for low KC numbers, the relationship between the wave parameters and the hydrodynamic forces is well described by the relationship between the wave parameters and the water particle accelerations. The vertical hydrodynamic forces are found to be larger than the horizontal hydrodynamic forces. The force coefficients from this study are compared to coefficient found in previous studies. The drag coefficients for the only current tests agree well with the results from (Courchesne & Laneville, 1979), (Bearman & Trueman, 1972), (Nakaguchi, 1968) and (Venugopal, 2006). For the regular wave and combined wave-current conditions comparable results are found to those by Venugopal for a rectangular cylinder towed through a wave field (Venugopal, 2008). The drag coefficients in the present study show a similar trend in magnitude as in the study by Venugopal. However, the magnitudes have an opposite sign due to the velocity phase shift method applied in the present study. Nevertheless, the effect of this difference on the total force prediction is insignificant, because of inertia dominance. In general, the Morison equation predicts the measured horizontal force well for regular waves. Adding a current component to the waves results in a larger error between the computed Morison forces and the measured force. However, an increase in the magnitude of the added velocity does not lead to a significant increase of this error. The second part of the study focuses on the same cylinder, only not fixed but held in place by 4 tethers. For these tests a buoyancy to weight ratio of 1.5 is applied. The used tested angles between the tethers and the flume bottom are 30˚ and 70 ̊. The water depth, the wave types and model submergence depths are remained equal to the first… Advisors/Committee Members: Uijttewaal, Wim (mentor), Chen, Xuexue (graduation committee), Peters, Dirk Jan (graduation committee), Reinders, Kristina (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: wave-current interaction; drag forces; intertia forces; rectangle; tether; submerged floating tunnel; Hydrodynamic; Morison's equation; Experimental; force coëfficients; kinematics; displacments; accelerations

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Drost, L. (. (2019). The Submerged Floating Tunnel: An experimental study on the hydrodynamics and kinematics of a submerged rectangular cylinder in a wave-current environment. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:91a1c1bf-474b-4952-9485-c53f2fe353f0

Chicago Manual of Style (16^th Edition):

Drost, Lisanne (author). “The Submerged Floating Tunnel: An experimental study on the hydrodynamics and kinematics of a submerged rectangular cylinder in a wave-current environment.” 2019. Masters Thesis, Delft University of Technology. Accessed January 25, 2021. http://resolver.tudelft.nl/uuid:91a1c1bf-474b-4952-9485-c53f2fe353f0.

MLA Handbook (7^th Edition):

Drost, Lisanne (author). “The Submerged Floating Tunnel: An experimental study on the hydrodynamics and kinematics of a submerged rectangular cylinder in a wave-current environment.” 2019. Web. 25 Jan 2021.

Vancouver:

Drost L(. The Submerged Floating Tunnel: An experimental study on the hydrodynamics and kinematics of a submerged rectangular cylinder in a wave-current environment. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Jan 25]. Available from: http://resolver.tudelft.nl/uuid:91a1c1bf-474b-4952-9485-c53f2fe353f0.

Council of Science Editors:

Drost L(. The Submerged Floating Tunnel: An experimental study on the hydrodynamics and kinematics of a submerged rectangular cylinder in a wave-current environment. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:91a1c1bf-474b-4952-9485-c53f2fe353f0

Michigan Technological University

19. Lyu, Jianyang. OPTIMIZATION AND CONTROL OF ARRAYS OF WAVE ENERGY CONVERTERS.

Degree: PhD, Department of Mechanical Engineering-Engineering Mechanics, 2019, Michigan Technological University

URL: https://digitalcommons.mtu.edu/etdr/946

► Wave Energy Converter Array is a practical approach to harvest ocean wave energy. To leverage the potential of the WEC array in terms of… (more)

▼ Wave Energy Converter Array is a practical approach to harvest ocean wave energy. To leverage the potential of the WEC array in terms of energy extraction, it is essential to have a properly designed array configuration and control system. This thesis explores the optimal configuration of Wave Energy Converters (WECs) arrays and their optimal control. The optimization of the WEC array allows both dimensions of individual WECs as well as the array layout to varying. In the first optimization problem, cylindrical buoys are assumed in the array where their radii and drafts are optimization parameters. Genetic Algorithms are used for optimization. Three case studies are investigated of different array sizes: 3, 5, and 7 devices in the array. Two types of controls are assumed; the first is the standard impedance matching control while the second is a derivative control. The numerical test cases demonstrate that a higher q-factor is achieved when optimizing the buoys dimensions simultaneously with the array layout. In the conducted test cases, it is shown that optimizing the array layout can increase the q-factor on average by 39.21% when using optimal control, and increase it on average by a factor of 8.87% when using a derivative control. Arrays of wave energy converters (WECs) usually have large spacing between members of the array to avoid negative hydrodynamic interaction between members in the array. Errors in estimating the spacing between members may result in a significant degradation in the performance of the array in terms of the total harvested energy, due to destructive hydrodynamic interaction between members of the array. In this thesis, a hybrid design of wave energy converter arrays, that contains two types of WECs, the heaving buoys, and the floating flap-type devices, is investigated and compared against traditional WEC arrays of heaving buoys. The resulting q-factor is less sensitive to deviations in the spacing from the design layout. This hybrid array, hence, enables more WECs in the same ocean area. The two types of arrays are tested using 40 layouts that have different separation distances ranging from small to large. With the hybrid configuration, the array achieved a variance of the q-factor as low as 0.006. The traditional array has a variance of 0.024 which is four times larger. The optimization is conducted on the hybrid array with both layout and dimension as design variables. The optimal control algorithm for the WEC array is developed using the optimality condition. Devices in the array are assumed to be identical heaving buoys. The optimization objective is to maximize energy extraction at each time step. Both regular and irregular waves are used to excite the array. The unconstrained optimal control problem is solved with saturation on the control force. The solutions show that good wave estimations and sufficient accuracy of the radiation sub-system are the keys to the desired WEC array performance. Advisors/Committee Members: Ossama Abdelkhalik, Fernando Ponta.

Subjects/Keywords: wave energy converter array; optimization; optimal control; OSWC; dimensions; hydrodynamic interaction; Energy Systems; Fluid Dynamics; Ocean Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lyu, J. (2019). OPTIMIZATION AND CONTROL OF ARRAYS OF WAVE ENERGY CONVERTERS. (Doctoral Dissertation). Michigan Technological University. Retrieved from https://digitalcommons.mtu.edu/etdr/946

Chicago Manual of Style (16^th Edition):

Lyu, Jianyang. “OPTIMIZATION AND CONTROL OF ARRAYS OF WAVE ENERGY CONVERTERS.” 2019. Doctoral Dissertation, Michigan Technological University. Accessed January 25, 2021. https://digitalcommons.mtu.edu/etdr/946.

MLA Handbook (7^th Edition):

Lyu, Jianyang. “OPTIMIZATION AND CONTROL OF ARRAYS OF WAVE ENERGY CONVERTERS.” 2019. Web. 25 Jan 2021.

Vancouver:

Lyu J. OPTIMIZATION AND CONTROL OF ARRAYS OF WAVE ENERGY CONVERTERS. [Internet] [Doctoral dissertation]. Michigan Technological University; 2019. [cited 2021 Jan 25]. Available from: https://digitalcommons.mtu.edu/etdr/946.

Council of Science Editors:

Lyu J. OPTIMIZATION AND CONTROL OF ARRAYS OF WAVE ENERGY CONVERTERS. [Doctoral Dissertation]. Michigan Technological University; 2019. Available from: https://digitalcommons.mtu.edu/etdr/946

20. Lenain, Luc. Etudes expérimentales et numériques de la dynamique des vagues et leurs implications pour les échanges océan - atmosphère. : Directional Measurements of the Kinematics and Dynamics of Surface Waves and the Implications to Ocean-Atmosphere Interaction Processes.

Degree: Docteur es, Physique, 2017, Université Paris-Saclay (ComUE)

URL: http://www.theses.fr/2017SACLN033

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Au cours des dernières décennies, les communautés de recherches océanographiques et atmosphérique ont démontrées que pour améliorer notre compréhension du couplage entre l'atmosphère et l'océan,… (more)

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Au cours des dernières décennies, les communautés de recherches océanographiques et atmosphérique ont démontrées que pour améliorer notre compréhension du couplage entre l'atmosphère et l'océan, et le paramétrage du flux de masse entre l'océan et l'atmosphère (gaz, aérosols, par exemple) , de moment (pour la génération de vagues et de courants marins) et d'énergie (flux de chaleur et énergie cinétique pour les courants et le processus de mélange près de la surface ) dans les modèles couplés océan-atmosphère, les vagues doivent être prises en compte. La physique du couplage dépend de la cinématique et de la dynamique du champ de vagues, y compris les processus de génération de vagues liées au vent, les interactions non-linéaires, ondes-ondes et la dissipation des vagues, cette dernière étant normalement considérée comme dominée par le déferlement. Nous présentons ici une série d'études expérimentales et numériques, démontrant l'importance du champ de vagues sur les interactions océan - atmosphère.

Over the last several decades there has been growing recognition from both the traditional oceanographic and atmospheric science communities that to better understand the coupling between the atmosphere and the ocean, and reflect that understanding in improved air-sea fluxes of mass (e.g. gases, aerosols), momentum (e.g. generation of waves and currents) and energy (e.g. heat and kinetic energy for currents and mixing) in coupled ocean-atmosphere models, surface-wave processes must be taken into account. The underlying physics of the coupling depends on the kinematics and dynamics of the wave field, including processes of wind-wave growth, nonlinear wave-wave interactions, wave-current interactions and wave dissipation, with the last normally considered dominated by wave breaking. Here we present a series of experiments, both numerical and field observations, focusing on surface wave effects on air-sea interaction processes.

Advisors/Committee Members: Vuyst, Florian de (thesis director).

Subjects/Keywords: Deferlement; Échanges océan - atmosphère; Hydrodynamique; Ocean; Aerosol marin; Gerris; Breaking wave; Hydrodynamic; Sea spray; Marine aerosol; Air-Sea interaction; Gerris

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lenain, L. (2017). Etudes expérimentales et numériques de la dynamique des vagues et leurs implications pour les échanges océan - atmosphère. : Directional Measurements of the Kinematics and Dynamics of Surface Waves and the Implications to Ocean-Atmosphere Interaction Processes. (Doctoral Dissertation). Université Paris-Saclay (ComUE). Retrieved from http://www.theses.fr/2017SACLN033

Chicago Manual of Style (16^th Edition):

Lenain, Luc. “Etudes expérimentales et numériques de la dynamique des vagues et leurs implications pour les échanges océan - atmosphère. : Directional Measurements of the Kinematics and Dynamics of Surface Waves and the Implications to Ocean-Atmosphere Interaction Processes.” 2017. Doctoral Dissertation, Université Paris-Saclay (ComUE). Accessed January 25, 2021. http://www.theses.fr/2017SACLN033.

MLA Handbook (7^th Edition):

Lenain, Luc. “Etudes expérimentales et numériques de la dynamique des vagues et leurs implications pour les échanges océan - atmosphère. : Directional Measurements of the Kinematics and Dynamics of Surface Waves and the Implications to Ocean-Atmosphere Interaction Processes.” 2017. Web. 25 Jan 2021.

Vancouver:

Lenain L. Etudes expérimentales et numériques de la dynamique des vagues et leurs implications pour les échanges océan - atmosphère. : Directional Measurements of the Kinematics and Dynamics of Surface Waves and the Implications to Ocean-Atmosphere Interaction Processes. [Internet] [Doctoral dissertation]. Université Paris-Saclay (ComUE); 2017. [cited 2021 Jan 25]. Available from: http://www.theses.fr/2017SACLN033.

Council of Science Editors:

Lenain L. Etudes expérimentales et numériques de la dynamique des vagues et leurs implications pour les échanges océan - atmosphère. : Directional Measurements of the Kinematics and Dynamics of Surface Waves and the Implications to Ocean-Atmosphere Interaction Processes. [Doctoral Dissertation]. Université Paris-Saclay (ComUE); 2017. Available from: http://www.theses.fr/2017SACLN033

University of Illinois – Urbana-Champaign

21. Bybee, Michael Dean. Hydrodynamic Simulations of Colloidal Gels: Microstructure, Dynamics, and Rheology.

Degree: PhD, Chemical and Biomolecular Engineering, 2009, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/11616

► The microstructure, dynamics, and rheology of colloidal suspensions with short-range depletion attraction and long-range electrostatic repulsion are studied using equilibrium predictions and a new algorithm… (more)

Subjects/Keywords: colloidal suspension; colloidal gel; numerical simulation; hydrodynamic interaction

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APA (6^th Edition):

Bybee, M. D. (2009). Hydrodynamic Simulations of Colloidal Gels: Microstructure, Dynamics, and Rheology. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/11616

Chicago Manual of Style (16^th Edition):

Bybee, Michael Dean. “Hydrodynamic Simulations of Colloidal Gels: Microstructure, Dynamics, and Rheology.” 2009. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed January 25, 2021. http://hdl.handle.net/2142/11616.

MLA Handbook (7^th Edition):

Bybee, Michael Dean. “Hydrodynamic Simulations of Colloidal Gels: Microstructure, Dynamics, and Rheology.” 2009. Web. 25 Jan 2021.

Vancouver:

Bybee MD. Hydrodynamic Simulations of Colloidal Gels: Microstructure, Dynamics, and Rheology. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2009. [cited 2021 Jan 25]. Available from: http://hdl.handle.net/2142/11616.

Council of Science Editors:

Bybee MD. Hydrodynamic Simulations of Colloidal Gels: Microstructure, Dynamics, and Rheology. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2009. Available from: http://hdl.handle.net/2142/11616

Delft University of Technology

22. Shafiee-Far, M. Hydrodynamic Interaction Between Fluid Flow and Oscillating Slender Cylinders.

Degree: 1997, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d ; urn:NBN:nl:ui:24-uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d ; urn:NBN:nl:ui:24-uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d ; http://resolver.tudelft.nl/uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d

Subjects/Keywords: hydrodynamic interaction; offshore structures; fluid forces; Morison Equation

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APA (6^th Edition):

Shafiee-Far, M. (1997). Hydrodynamic Interaction Between Fluid Flow and Oscillating Slender Cylinders. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d ; urn:NBN:nl:ui:24-uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d ; urn:NBN:nl:ui:24-uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d ; http://resolver.tudelft.nl/uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d

Chicago Manual of Style (16^th Edition):

Shafiee-Far, M. “Hydrodynamic Interaction Between Fluid Flow and Oscillating Slender Cylinders.” 1997. Doctoral Dissertation, Delft University of Technology. Accessed January 25, 2021. http://resolver.tudelft.nl/uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d ; urn:NBN:nl:ui:24-uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d ; urn:NBN:nl:ui:24-uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d ; http://resolver.tudelft.nl/uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d.

MLA Handbook (7^th Edition):

Shafiee-Far, M. “Hydrodynamic Interaction Between Fluid Flow and Oscillating Slender Cylinders.” 1997. Web. 25 Jan 2021.

Vancouver:

Shafiee-Far M. Hydrodynamic Interaction Between Fluid Flow and Oscillating Slender Cylinders. [Internet] [Doctoral dissertation]. Delft University of Technology; 1997. [cited 2021 Jan 25]. Available from: http://resolver.tudelft.nl/uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d ; urn:NBN:nl:ui:24-uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d ; urn:NBN:nl:ui:24-uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d ; http://resolver.tudelft.nl/uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d.

Council of Science Editors:

Shafiee-Far M. Hydrodynamic Interaction Between Fluid Flow and Oscillating Slender Cylinders. [Doctoral Dissertation]. Delft University of Technology; 1997. Available from: http://resolver.tudelft.nl/uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d ; urn:NBN:nl:ui:24-uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d ; urn:NBN:nl:ui:24-uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d ; http://resolver.tudelft.nl/uuid:b32d329b-e552-49b5-a9e2-c26220dc6d2d

23. Wheless, Glen Harvey. The Effects of Variable Parameters on the Behavior of Initial Wind Waves.

Degree: PhD, Ocean/Earth/Atmos Sciences, 1990, Old Dominion University

URL: https://digitalcommons.odu.edu/oeas_etds/166

► The generation mechanism of short wind waves is generally thought to be a viscous instability at the air-sea interface. The short, regular waves arising… (more)

Subjects/Keywords: Hydrodynamic instability; Wind waves; Hydrodynamics; Ocean-atmosphere interaction; Oceanography

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wheless, G. H. (1990). The Effects of Variable Parameters on the Behavior of Initial Wind Waves. (Doctoral Dissertation). Old Dominion University. Retrieved from https://digitalcommons.odu.edu/oeas_etds/166

Chicago Manual of Style (16^th Edition):

Wheless, Glen Harvey. “The Effects of Variable Parameters on the Behavior of Initial Wind Waves.” 1990. Doctoral Dissertation, Old Dominion University. Accessed January 25, 2021. https://digitalcommons.odu.edu/oeas_etds/166.

MLA Handbook (7^th Edition):

Wheless, Glen Harvey. “The Effects of Variable Parameters on the Behavior of Initial Wind Waves.” 1990. Web. 25 Jan 2021.

Vancouver:

Wheless GH. The Effects of Variable Parameters on the Behavior of Initial Wind Waves. [Internet] [Doctoral dissertation]. Old Dominion University; 1990. [cited 2021 Jan 25]. Available from: https://digitalcommons.odu.edu/oeas_etds/166.

Council of Science Editors:

Wheless GH. The Effects of Variable Parameters on the Behavior of Initial Wind Waves. [Doctoral Dissertation]. Old Dominion University; 1990. Available from: https://digitalcommons.odu.edu/oeas_etds/166

University of Akron

24. Swoger, Maxx Ryan. Computational Investigation of Material and Dynamic Properties of Microtubules.

Degree: MS, Physics, 2018, University of Akron

URL: http://rave.ohiolink.edu/etdc/view?acc_num=akron1532108320185937

► Microtubules are an important component of the cytoskeleton of cells. They provide not only structural support, but also connectivity between different regions of the cell.… (more)

▼ Microtubules are an important component of the cytoskeleton of cells. They provide not only structural support, but also connectivity between different regions of the cell. The motor protein kinesin, for example, transports tethered cargo by walking along microtubules. Microtubules are macromolecules composed of two types of protein subunits, alpha and beta tubulin. Alternating alpha and beta units form long strands called protofilaments that are arranged with a helical pitch to form a hollow tube. This structure is responsible for the unusual mechanic and complex dynamic properties of microtubules in a liquid environment. In this work, we investigate material and dynamic properties of microtubules with computational methods. Since all-atom simulations are restricted to very short (~10 nm) sections of microtubules and very short (~10 ns) time scales, while dynamic processes span a much wider range of length and time scales, we focus on coarse-grained models: an interaction site model for Brownian dynamics simulations, a structural mechanics model for finite element calculations, and a continuum model to analyze normal modes. A comparison of mechanical properties of microtubules under an external force determined from finite element calculations and from Brownian dynamics simulations shows that the structural mechanics model describes a softer microtubule than the interaction site model. To investigate dynamic properties of microtubules in a finite-temperature liquid, we perform Brownian dynamics simulations with and without hydrodynamic interactions. After averaging out the fastest, thermal, motion, we are able to analyze transverse displacement results in terms of eigenmodes of an Euler-Bernoulli cantilever beam. Our results show that, in general, shorter microtubules have faster dynamics and that the inclusion of hydrodynamic interactions affects the slow modes of microtubules. Advisors/Committee Members: Luettmer-Strathmann, Jutta (Advisor), Hu, Yu-Kuang (Committee Chair).

Subjects/Keywords: Biophysics; Condensed Matter Physics; Physics; Theoretical Physics; microtubule; Brownian dynamics simulation; hydrodynamic interaction; elastic properties; slow modes

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APA (6^th Edition):

Swoger, M. R. (2018). Computational Investigation of Material and Dynamic Properties of Microtubules. (Masters Thesis). University of Akron. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=akron1532108320185937

Chicago Manual of Style (16^th Edition):

Swoger, Maxx Ryan. “Computational Investigation of Material and Dynamic Properties of Microtubules.” 2018. Masters Thesis, University of Akron. Accessed January 25, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1532108320185937.

MLA Handbook (7^th Edition):

Swoger, Maxx Ryan. “Computational Investigation of Material and Dynamic Properties of Microtubules.” 2018. Web. 25 Jan 2021.

Vancouver:

Swoger MR. Computational Investigation of Material and Dynamic Properties of Microtubules. [Internet] [Masters thesis]. University of Akron; 2018. [cited 2021 Jan 25]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=akron1532108320185937.

Council of Science Editors:

Swoger MR. Computational Investigation of Material and Dynamic Properties of Microtubules. [Masters Thesis]. University of Akron; 2018. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=akron1532108320185937

25. Ahsan, Syed N. Finite Amplitude Oscillations of Flanged Laminas in Viscous Flows: Vortex-structure Interactions for Hydrodynamic Damping Control.

Degree: 2014, University of Nevada – Reno

URL: http://hdl.handle.net/11714/2402

► In this thesis, we study the problem of a submerged flanged lamina undergoing harmonic oscillations in a quiescent, Newtonian, viscous fluid. This problem is of… (more)

▼ In this thesis, we study the problem of a submerged flanged lamina undergoing harmonic oscillations in a quiescent, Newtonian, viscous fluid. This problem is of potential applicative relevance to a variety of research fields, such as atomic force microscopy, sensors and actuators based on micromechanical oscillators, biomimetic robotic propulsion, and microscale energy harvesting.We conduct a thorough computational fluid dynamics (CFD) simulation campaign with the goal of studying the fluid-structure interaction mechanisms resulting in added mass and hydrodynamic damping on the oscillating solid, with primary focus on evaluating the complex hydrodynamic function incorporating these effects via its real and imaginary parts, respectively. In this study, three nondimensional parameters are found to govern the flow evolution, that is, a nondimensional frequency parameter, a nondimensional amplitude of oscillation parameter, and a geometric parameter describing the flange to lamina width ratio. In particular, we determine that the addition of flanges results into complex and intriguing relations between hydrodynamic forcing, lamina geometry, and dynamic oscillation conditions.We investigate in detail the flow physics and the effects of nonlinearities on vortex shedding, convection, and diffusion in the vicinity of the oscillating structure. We find that the added mass effect is affected by the presence of the flanges, which results into larger fluid entrainment during the lamina oscillation. In addition, the hydrodynamic damping effects is remarkably affected by the interplay of geometric and dynamic parameters. We find the existence of a minimum in the hydrodynamic damping which can be attained by specific control of vortex-structure interaction dynamics. This peculiar interaction can be understood and discussed from physical grounds by inspection of the pertinent vorticity fields. Advisors/Committee Members: Aureli, Matteo (advisor), Fu, Henry (committee member), Vasquez, Victor R. (committee member).

Subjects/Keywords: Beam flexural vibrations; Computational fluid dynamics (CFD); Fluid-structure interaction; Hydrodynamic function; Nonlinear vibrations; Underwater vibrations

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APA (6^th Edition):

Ahsan, S. N. (2014). Finite Amplitude Oscillations of Flanged Laminas in Viscous Flows: Vortex-structure Interactions for Hydrodynamic Damping Control. (Thesis). University of Nevada – Reno. Retrieved from http://hdl.handle.net/11714/2402

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ahsan, Syed N. “Finite Amplitude Oscillations of Flanged Laminas in Viscous Flows: Vortex-structure Interactions for Hydrodynamic Damping Control.” 2014. Thesis, University of Nevada – Reno. Accessed January 25, 2021. http://hdl.handle.net/11714/2402.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ahsan, Syed N. “Finite Amplitude Oscillations of Flanged Laminas in Viscous Flows: Vortex-structure Interactions for Hydrodynamic Damping Control.” 2014. Web. 25 Jan 2021.

Vancouver:

Ahsan SN. Finite Amplitude Oscillations of Flanged Laminas in Viscous Flows: Vortex-structure Interactions for Hydrodynamic Damping Control. [Internet] [Thesis]. University of Nevada – Reno; 2014. [cited 2021 Jan 25]. Available from: http://hdl.handle.net/11714/2402.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ahsan SN. Finite Amplitude Oscillations of Flanged Laminas in Viscous Flows: Vortex-structure Interactions for Hydrodynamic Damping Control. [Thesis]. University of Nevada – Reno; 2014. Available from: http://hdl.handle.net/11714/2402

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Alberta

26. Rafie Borujeny, Elham. Attachment of CeO2 and SiO2 for Chemical Mechanical Polishing: Theory and Experiments.

Degree: MS, Department of Chemical and Materials Engineering, 2014, University of Alberta

URL: https://era.library.ualberta.ca/files/5h73pw650

► Interactions of finely dispersed abrasive particles in chemical mechanical planarization (CMP) slurries play a vital role in determining the polishing performance. In this study, coupled… (more)

Subjects/Keywords: XDLVO; Colloidal Interaction; CeO2; Hydrodynamic Interaction; DLVO; Silica; Mixed Abrasive Slurry; Quartz Crystal Microbalance; QCM-D; Chemical Mechanical Polishing; CMP; Deposition Rate; Sauerbrey; Ceria; Chemical Mechanical Planarization; SiO2

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APA (6^th Edition):

Rafie Borujeny, E. (2014). Attachment of CeO2 and SiO2 for Chemical Mechanical Polishing: Theory and Experiments. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/5h73pw650

Chicago Manual of Style (16^th Edition):

Rafie Borujeny, Elham. “Attachment of CeO2 and SiO2 for Chemical Mechanical Polishing: Theory and Experiments.” 2014. Masters Thesis, University of Alberta. Accessed January 25, 2021. https://era.library.ualberta.ca/files/5h73pw650.

MLA Handbook (7^th Edition):

Rafie Borujeny, Elham. “Attachment of CeO2 and SiO2 for Chemical Mechanical Polishing: Theory and Experiments.” 2014. Web. 25 Jan 2021.

Vancouver:

Rafie Borujeny E. Attachment of CeO2 and SiO2 for Chemical Mechanical Polishing: Theory and Experiments. [Internet] [Masters thesis]. University of Alberta; 2014. [cited 2021 Jan 25]. Available from: https://era.library.ualberta.ca/files/5h73pw650.

Council of Science Editors:

Rafie Borujeny E. Attachment of CeO2 and SiO2 for Chemical Mechanical Polishing: Theory and Experiments. [Masters Thesis]. University of Alberta; 2014. Available from: https://era.library.ualberta.ca/files/5h73pw650

27. Cerqueira, Stéphane. Étude du couplage aéro-mécanique au sein des moteurs à propergol solide : Aero-mechanical coupling inside solid propellant rocket motors.

Degree: Docteur es, Mécanique numérique, 2012, Paris, ENMP

URL: http://www.theses.fr/2012ENMP0011

►

Les Moteurs à Propergol Solide sont le siège d'instabilités de combustion qui se manifestent par des fluctuations de la pression interne et, en conséquence, de… (more)

▼

Les Moteurs à Propergol Solide sont le siège d'instabilités de combustion qui se manifestent par des fluctuations de la pression interne et, en conséquence, de la poussée induite. Les phénomènes oscillatoires observés résultent d'un couplage entre l'acoustique de la chambre de combustion et une ou plusieurs instabilités hydrodynamiques de l'écoulement interne.Dans cette thèse, on s'intéresse à l'étude de l'écoulement induit par injection pariétale en géométrie axisymétrique. Plus particulièrement, on se concentre sur l'interaction qui peut avoir lieu entre cet écoulement et une structure : les Protections Thermiques de Face.Une étude expérimentale reposant sur le montage gaz froid VALDO de l'ONERA, modélisation représentative des MPS P230, a permis d'examiner l'influence d'obstacles, rigides et en élastomère, sur les instationnarités de l'écoulement. Le caractère instable de l'écoulement induit par injection pariétale est alors confirmé et le rôle primordial joué par les PTF sur les fréquences émergeant au sein de l'écoulement a été identifié.L'analyse de stabilité linéaire de l'écoulement, conduite en approche globale, permet l'étude de sa dynamique en tant qu'amplificateur de bruit. Les m¶mécanismes mis en jeu dans l'instabilité de l'écoulement induit par injection pariétale ainsi que son interaction complexe avec la couche de cisaillement issue de l'obstacle sont analysés. La réponse de l'écoulement à un forçage harmonique est alors examinée à la lumière des résultats expérimentaux.Cette étude a été complétée par une approche numérique de l'Interaction Fluide-Structure sur une configuration jugée critique. Une étape préliminaire à la simulation multi-physique est l'élaboration d'un modèle réaliste du comportement des PTF en élastomère. L'identification et la prise en considération des mécanismes propres aux élastomères dans la loi de comportement est ainsi détaillée. Les résultats issus des simulations sont confrontés aux résultats expérimentaux et rendent possible la validation d'un scénario de couplage dédié à l'Interaction Fluide-Structure au sein des MPS.

Fluid Structure Interaction of an inhibitor with the internal flow induced by wall injection was studied in an axisymmetric cold flow apparatus. Experiments were carried out over a wide range of injection velocities in order to underline how the obstacle not only modifies the mean flowfield but also its entire dynamic behaviour.The resulting instability (from the interaction of the unstable shear layer with the Taylor-Culick flow) exhibits a significant shift with respect to the Taylor-Culick instability and therefore emphasizes the strong impact of the inhibitor on hydrodynamics.The mecanisms responsible of such behaviour are studied in this thesis with the help of global linear stability analysis and multi-physics numerical computations.

Advisors/Committee Members: Feyel, Frédéric (thesis director).

Subjects/Keywords: Propulsion Solide; Interaction Fluide-Structure; Instabilité hydrodynamique; Vortex Shedding; Ariane 5; Solid Propulsion; Fluid-Structure Interaction; Hydrodynamic instability; Vortex Shedding; Ariane 5

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Cerqueira, S. (2012). Étude du couplage aéro-mécanique au sein des moteurs à propergol solide : Aero-mechanical coupling inside solid propellant rocket motors. (Doctoral Dissertation). Paris, ENMP. Retrieved from http://www.theses.fr/2012ENMP0011

Chicago Manual of Style (16^th Edition):

Cerqueira, Stéphane. “Étude du couplage aéro-mécanique au sein des moteurs à propergol solide : Aero-mechanical coupling inside solid propellant rocket motors.” 2012. Doctoral Dissertation, Paris, ENMP. Accessed January 25, 2021. http://www.theses.fr/2012ENMP0011.

MLA Handbook (7^th Edition):

Cerqueira, Stéphane. “Étude du couplage aéro-mécanique au sein des moteurs à propergol solide : Aero-mechanical coupling inside solid propellant rocket motors.” 2012. Web. 25 Jan 2021.

Vancouver:

Cerqueira S. Étude du couplage aéro-mécanique au sein des moteurs à propergol solide : Aero-mechanical coupling inside solid propellant rocket motors. [Internet] [Doctoral dissertation]. Paris, ENMP; 2012. [cited 2021 Jan 25]. Available from: http://www.theses.fr/2012ENMP0011.

Council of Science Editors:

Cerqueira S. Étude du couplage aéro-mécanique au sein des moteurs à propergol solide : Aero-mechanical coupling inside solid propellant rocket motors. [Doctoral Dissertation]. Paris, ENMP; 2012. Available from: http://www.theses.fr/2012ENMP0011

28. Sagou, Sagou Jean-Pierre. Influence de cations métalliques sur les propriétés physico-chimiques de carboxyméthyl-dextrane fonctionnalisé : Influence of metallic cations on physico-chemical properties of functionalized carboxymethyldextran macromolecules.

Degree: Docteur es, Géosciences, 2008, Lorraine INP

URL: http://www.theses.fr/2008INPL072N

►

Le présent travail est destiné à acquérir un ensemble de données expérimentales et quantitatives cohérentes sur le comportement physico-chimique d'un système constitué d'un polysaccharide linéaire,… (more)

▼

Le présent travail est destiné à acquérir un ensemble de données expérimentales et quantitatives cohérentes sur le comportement physico-chimique d'un système constitué d'un polysaccharide linéaire, flexible et chimiquement fonctionnalisé en groupements carboxyliques, le carboxyméthyl-dextrane (CMD) et d'un milieu ionique comportant des cations d'affinité variée pour ces fonctions : Na+, Ca2+ et Cd2+. La densité de sites et leur constante de dissociation - complexation ont été déterminées par titrage potentiométrique avec des électrodes spécifiques (proton et cadmium). Les propriétés électro-hydrodynamiques et les transitions conformationnelles ont été étudiées en combinant la conductimétrie, l'électrophorèse, la diffusion dynamique de lumière et la viscosimétrie. Enfin, la stabilité colloïdale en relation avec les interactions intermoléculaires a été étudiée par turbidimétrie et diffusion dynamique de lumière. En présence d'ions monovalents, le comportement du CMD, typique d’une particule microgel molle, est déterminé par la force ionique et la concentration en polysaccharide. A basse force ionique, le CMD est en condition de bon solvant lorsqu'il est peu concentré tandis que le recouvrement des doubles-couches électriques autour des macromolécules détermine les propriétés électro-hydrodynamiques du CMD en régime concentré. A haute salinité, les interactions électrostatiques intramoléculaires et interparticulaires sont négligeables, et la macromolécule a un comportement caractéristique de polymère en mauvais solvant à haute fraction volumique. En présence de cations divalents, le calcium, et plus encore le cadmium, entrent en compétition avec le proton pour l’occupation des sites carboxyliques, ce qui s’accompagne par une réorganisation locale des chaînes polymères. A haute force ionique, la taille élevée des agrégats, la vitesse initiale d'agrégation élevée, ainsi que la persistance d'une forte turbidité au maximum d'effet, suggèrent que les agrégats sont formés en régime de type agrégation limitée par la diffusion des particules (DLA)

The present work focused on the acquisition of experimental and quantitative data on the physico-chemical properties of a linear, flexible and chemically functionalized polysaccharide by carboxymethyl grafting, yielding carboxymethyldextran macromolecules (CMD) and an aqueous electrolyte containing various ions Na+, Ca2+ et Cd2+ with different chemical affinity for these chemical functions. Charge density and complexation – dissociation constants have been evaluated using specific electrodes-based potentiometric titration. The electro-hydrodynamic properties and the conformational transitions were examined through electrical conductivity increment measurements, electrophoresis, dynamic light scattering and viscosimetry. Also, colloidal stability has been investigated by means of turbidimetry and dynamic light scattering. In the presence of monovalent ions, the behaviour of CMD, typically that of a soft microgel particle, is strongly depending on ionic strength and polysaccharide…

Advisors/Committee Members: Thomas, Fabien (thesis director), Duval, Jérôme (thesis director).

Subjects/Keywords: Carboxyméthyl-dextrane; Macromolécule; Electro-hydrodynamique; Gonflement; Effet de solvant; Complexation; Interaction électrostatique; Carboxymethyldextran; Swelling; Solvent effect; Complexation; Macromolecule; Electro-hydrodynamic; Electrostatic interaction

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sagou, S. J. (2008). Influence de cations métalliques sur les propriétés physico-chimiques de carboxyméthyl-dextrane fonctionnalisé : Influence of metallic cations on physico-chemical properties of functionalized carboxymethyldextran macromolecules. (Doctoral Dissertation). Lorraine INP. Retrieved from http://www.theses.fr/2008INPL072N

Chicago Manual of Style (16^th Edition):

Sagou, Sagou Jean-Pierre. “Influence de cations métalliques sur les propriétés physico-chimiques de carboxyméthyl-dextrane fonctionnalisé : Influence of metallic cations on physico-chemical properties of functionalized carboxymethyldextran macromolecules.” 2008. Doctoral Dissertation, Lorraine INP. Accessed January 25, 2021. http://www.theses.fr/2008INPL072N.

MLA Handbook (7^th Edition):

Sagou, Sagou Jean-Pierre. “Influence de cations métalliques sur les propriétés physico-chimiques de carboxyméthyl-dextrane fonctionnalisé : Influence of metallic cations on physico-chemical properties of functionalized carboxymethyldextran macromolecules.” 2008. Web. 25 Jan 2021.

Vancouver:

Sagou SJ. Influence de cations métalliques sur les propriétés physico-chimiques de carboxyméthyl-dextrane fonctionnalisé : Influence of metallic cations on physico-chemical properties of functionalized carboxymethyldextran macromolecules. [Internet] [Doctoral dissertation]. Lorraine INP; 2008. [cited 2021 Jan 25]. Available from: http://www.theses.fr/2008INPL072N.

Council of Science Editors:

Sagou SJ. Influence de cations métalliques sur les propriétés physico-chimiques de carboxyméthyl-dextrane fonctionnalisé : Influence of metallic cations on physico-chemical properties of functionalized carboxymethyldextran macromolecules. [Doctoral Dissertation]. Lorraine INP; 2008. Available from: http://www.theses.fr/2008INPL072N

University of Oxford

29. Oduwole, Olayinka. Particle interactions in a magnetophoretic system.

Degree: PhD, 2016, University of Oxford

URL: http://ora.ox.ac.uk/objects/uuid:f01cbb33-4dd4-4057-8891-7097e6493bce ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730336

► The continuous flow separation of magnetic particles from a mixture of particles could improve the performance of magnetic bead based assays but the formation of… (more)

Subjects/Keywords: 620.1; Biomedical Engineering; Engineering; Magnetic Interaction; Magnetic Field; Bio-sensor; Magnetic Bead Agglomerate; Hydrodynamic Interaction; Immunoassay; Lab-on-a-chip; Super-paramagnetic Bead; Microfluidics; Magnetic Separation; Magnetophoretic

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APA (6^th Edition):

Oduwole, O. (2016). Particle interactions in a magnetophoretic system. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:f01cbb33-4dd4-4057-8891-7097e6493bce ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730336

Chicago Manual of Style (16^th Edition):

Oduwole, Olayinka. “Particle interactions in a magnetophoretic system.” 2016. Doctoral Dissertation, University of Oxford. Accessed January 25, 2021. http://ora.ox.ac.uk/objects/uuid:f01cbb33-4dd4-4057-8891-7097e6493bce ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730336.

MLA Handbook (7^th Edition):

Oduwole, Olayinka. “Particle interactions in a magnetophoretic system.” 2016. Web. 25 Jan 2021.

Vancouver:

Oduwole O. Particle interactions in a magnetophoretic system. [Internet] [Doctoral dissertation]. University of Oxford; 2016. [cited 2021 Jan 25]. Available from: http://ora.ox.ac.uk/objects/uuid:f01cbb33-4dd4-4057-8891-7097e6493bce ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730336.

Council of Science Editors:

Oduwole O. Particle interactions in a magnetophoretic system. [Doctoral Dissertation]. University of Oxford; 2016. Available from: http://ora.ox.ac.uk/objects/uuid:f01cbb33-4dd4-4057-8891-7097e6493bce ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730336

Penn State University

30. Reese, Marc Christian. Vibration and Damping of Hydrofoils in Uniform Flow.

Degree: 2010, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/10741

► The vibration of a cantilever lifting body at low Mach number flows in water has been measured in the ARL-Penn State 12” water tunnel. Previous… (more)

Subjects/Keywords: fluid-structure interaction; structural vibration; acoustics; cantilever plate; fluid loading; added mass; hydrodynamic damping; hydrodynamic stiffness; flow visualization; water tunnel

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Reese, M. C. (2010). Vibration and Damping of Hydrofoils in Uniform Flow. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/10741

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Reese, Marc Christian. “Vibration and Damping of Hydrofoils in Uniform Flow.” 2010. Thesis, Penn State University. Accessed January 25, 2021. https://submit-etda.libraries.psu.edu/catalog/10741.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Reese, Marc Christian. “Vibration and Damping of Hydrofoils in Uniform Flow.” 2010. Web. 25 Jan 2021.

Vancouver:

Reese MC. Vibration and Damping of Hydrofoils in Uniform Flow. [Internet] [Thesis]. Penn State University; 2010. [cited 2021 Jan 25]. Available from: https://submit-etda.libraries.psu.edu/catalog/10741.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Reese MC. Vibration and Damping of Hydrofoils in Uniform Flow. [Thesis]. Penn State University; 2010. Available from: https://submit-etda.libraries.psu.edu/catalog/10741

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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Open Access Theses and Dissertations