subject:(Velocimetry)

1. Yi, Xiongfeng. Microrheology by using the statistical particle tracking method.

Degree: Fluid, Thermal, and Chemical Processes, 2017, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:733569/

► In the field of complex fluid, such as emulsions, polymer, colloids or surfactant solutions, an interesting research process is to analysis their multiphase characters. The… (more)

▼ In the field of complex fluid, such as emulsions, polymer, colloids or surfactant solutions, an interesting research process is to analysis their multiphase characters. The primary difference between fluids and solids is how they respond to the shear stress: Pure fluid, which is viscous, tends to dissipate the mechanical energy, whereas a solid, which is more likely to store the energy, is elastic. For materials like complex fluids, their viscoelastic characters, which vary with the frequency, let them both store and dissipate the energy. Those characters are represented as complex shear modulus G*(ω). The viscous component is the imaginary part of G*(ω), which is also called the loss modulus G’’(ω); the elastic component is the real part of G*(ω), which is also called the storage modulus G’(ω). Usually, a good rheology method is to apply an oscillatory shear strain with different frequencies. With a given angular speed and temperature, the torque required to rotate the plate contacting with the fluid is measured, and the storage and loss modulus from the shear stress are calculated from the torque. To use this method, a rotor is used to rotate the fluid at different frequencies, and we calculate the viscous and elastic modulus (G’ G’’). C. Wilhelm et al. tested two modulus of Laponite colloidal suspension in 2002. The thesis introduces a new method of testing visco-elastic of fluid in high frequency by using the microscope and high speed camera. To test the viscosity and elastic characters of a solution, particles are tracked to calculate the mean squared displacement(MSD), using Laplace transformation on MSD to have the viscous and elastic modulus. T.G. Mason et al. recorded MSD of 0.21µm polystyrene latex particles in 15% polyethylene oxide solution; they also tested the Diffusing wave spectroscopy(DWS) measurements on ethylene glycol solution with 0.21µm silica particles. For both experiments, they had the visco-elastic modulus at the highest frequency of 20Hz. G. D. Jay et al. tested 6 different kinds of fluid, including both Newtonian and non-Newtonian fluids. For complex fluid, the highest frequency of visco elastic modulus was 100Hz/ To calculate the MSD, a commonly using method for tracking particles is to calculate the displacement of two images. One particle on the first image is focused on, around which a searching area is defined. The closest particle inside the searching area in the following image is regarded as the same particle as the first one. When there are no particles in the searching area, it means that the particles disappear from the field of the microscope. With this result, we have the displacement of one time interval (the time between two neighboring images, and the displacement belongs to the same particle). Integrating the displacement for each particle, we have the displacement for larger time intervals. This method has a good tracking result for large particles and low frequency. On one hand, the random walk for large particles is small, which is easy to be defined as correlated… Advisors/Committee Members: Breuer, Kenneth (Advisor).

Subjects/Keywords: Particle Tracking Velocimetry

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APA (6^th Edition):

Yi, X. (2017). Microrheology by using the statistical particle tracking method. (Thesis). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:733569/

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):

Yi, Xiongfeng. “Microrheology by using the statistical particle tracking method.” 2017. Thesis, Brown University. Accessed January 20, 2021. https://repository.library.brown.edu/studio/item/bdr:733569/.

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

MLA Handbook (7^th Edition):

Yi, Xiongfeng. “Microrheology by using the statistical particle tracking method.” 2017. Web. 20 Jan 2021.

Vancouver:

Yi X. Microrheology by using the statistical particle tracking method. [Internet] [Thesis]. Brown University; 2017. [cited 2021 Jan 20]. Available from: https://repository.library.brown.edu/studio/item/bdr:733569/.

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

Council of Science Editors:

Yi X. Microrheology by using the statistical particle tracking method. [Thesis]. Brown University; 2017. Available from: https://repository.library.brown.edu/studio/item/bdr:733569/

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

Texas A&M University

2. Goumnerov, Hristo. Validation of a Three Dimensional Particle Tracking Velocimetry Software.

Degree: MS, Mechanical Engineering, 2014, Texas A&M University

URL: http://hdl.handle.net/1969.1/153583

► In the present research, the three dimensional particle tracking software OpenPTV is validated with synthetic images from the Standard PIV project by the Visualization Society… (more)

Subjects/Keywords: Particle Tracking Velocimetry; OpenPTV

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APA (6^th Edition):

Goumnerov, H. (2014). Validation of a Three Dimensional Particle Tracking Velocimetry Software. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/153583

Chicago Manual of Style (16^th Edition):

Goumnerov, Hristo. “Validation of a Three Dimensional Particle Tracking Velocimetry Software.” 2014. Masters Thesis, Texas A&M University. Accessed January 20, 2021. http://hdl.handle.net/1969.1/153583.

MLA Handbook (7^th Edition):

Goumnerov, Hristo. “Validation of a Three Dimensional Particle Tracking Velocimetry Software.” 2014. Web. 20 Jan 2021.

Vancouver:

Goumnerov H. Validation of a Three Dimensional Particle Tracking Velocimetry Software. [Internet] [Masters thesis]. Texas A&M University; 2014. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1969.1/153583.

Council of Science Editors:

Goumnerov H. Validation of a Three Dimensional Particle Tracking Velocimetry Software. [Masters Thesis]. Texas A&M University; 2014. Available from: http://hdl.handle.net/1969.1/153583

Penn State University

3. Karns, Alex Mitchell. Development of a Laser Doppler Velocimetry System for Supersonic Jet Turbulence Measurements.

Degree: 2014, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/22749

► The study of military style exhaust nozzles to further understand their acoustic characteristics has been the recent focus of the Pennsylvania State University high-speed jet… (more)

▼ The study of military style exhaust nozzles to further understand their acoustic characteristics has been the recent focus of the Pennsylvania State University high-speed jet aeroacoustics facility. Advanced measurement techniques are required to study the turbulence characteristics of the flow field. Development of a laser Doppler velocimetry system would allow for these measurements to be made non-intrusively. Development of the laser Doppler velocimetry system required research and testing of each component as it was placed into the system. Development was split into two portions: fundamental or basic concepts and components, and advanced components. During these stages, many components, such as the transmitting and receiving probes, were fabricated, procedures were developed, and calibration of the transmitting probe was completed. Once the development stages were complete, the laser Doppler velocimetry system was used to measure subsonic flows of a cold air exhaust jet. Velocity measurements proved to be accurate to within 2% of calculated jet Mach numbers with discrepancies of up to 6% at Mach numbers approaching 1 at x/D of 2. Comparison of axial turbulence intensity data to previous studies yielded less favorable result possibly due to use of the exhaust fan, but this hypothesis cannot be proven without more experiments. Parametric studies were also on the ratio of the injection pressure ratio to the nozzle pressure ratio and the exhaust fan power determine their effects of seeding on measurement values. It was determined that ratio of the injection pressure ratio to the nozzle pressure ratio had negligible effect on the measurements except at a value of 1 where the axial turbulence intensity was up to 6% different than the other measurements. However, the ratio was found to have an inverse relationship to the number of validated burst particles per unit time. The power of the exhaust fan created differences in the measurement of up to 3% at x/D greater than 6, with higher values of Mach number and lower values of axial turbulence intensity at the exhaust fan power of 15%. However, it is difficult to draw conclusions with only two sets of data. Advisors/Committee Members: Dennis K Mclaughlin, Thesis Advisor/Co-Advisor.

Subjects/Keywords: LDV; Laser; Velocimetry; Supersonic Jet

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APA (6^th Edition):

Karns, A. M. (2014). Development of a Laser Doppler Velocimetry System for Supersonic Jet Turbulence Measurements. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/22749

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):

Karns, Alex Mitchell. “Development of a Laser Doppler Velocimetry System for Supersonic Jet Turbulence Measurements.” 2014. Thesis, Penn State University. Accessed January 20, 2021. https://submit-etda.libraries.psu.edu/catalog/22749.

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

MLA Handbook (7^th Edition):

Karns, Alex Mitchell. “Development of a Laser Doppler Velocimetry System for Supersonic Jet Turbulence Measurements.” 2014. Web. 20 Jan 2021.

Vancouver:

Karns AM. Development of a Laser Doppler Velocimetry System for Supersonic Jet Turbulence Measurements. [Internet] [Thesis]. Penn State University; 2014. [cited 2021 Jan 20]. Available from: https://submit-etda.libraries.psu.edu/catalog/22749.

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

Council of Science Editors:

Karns AM. Development of a Laser Doppler Velocimetry System for Supersonic Jet Turbulence Measurements. [Thesis]. Penn State University; 2014. Available from: https://submit-etda.libraries.psu.edu/catalog/22749

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

Purdue University

4. Singh, Bhavini. Development of Particle Image Velocimetry for Plasma Induced Flow Measurements.

Degree: MSin Aeronautics and Astronautics, Aeronautics and Astronautics, 2015, Purdue University

URL: https://docs.lib.purdue.edu/open_access_theses/1075

► There has been an increased interest in the use of flow control in aerodynamics and combustion to improve efficiency and reduce emissions. Plasma flow control… (more)

Subjects/Keywords: Image; Particle; Plasma; Velocimetry

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APA (6^th Edition):

Singh, B. (2015). Development of Particle Image Velocimetry for Plasma Induced Flow Measurements. (Thesis). Purdue University. Retrieved from https://docs.lib.purdue.edu/open_access_theses/1075

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):

Singh, Bhavini. “Development of Particle Image Velocimetry for Plasma Induced Flow Measurements.” 2015. Thesis, Purdue University. Accessed January 20, 2021. https://docs.lib.purdue.edu/open_access_theses/1075.

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

MLA Handbook (7^th Edition):

Singh, Bhavini. “Development of Particle Image Velocimetry for Plasma Induced Flow Measurements.” 2015. Web. 20 Jan 2021.

Vancouver:

Singh B. Development of Particle Image Velocimetry for Plasma Induced Flow Measurements. [Internet] [Thesis]. Purdue University; 2015. [cited 2021 Jan 20]. Available from: https://docs.lib.purdue.edu/open_access_theses/1075.

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

Council of Science Editors:

Singh B. Development of Particle Image Velocimetry for Plasma Induced Flow Measurements. [Thesis]. Purdue University; 2015. Available from: https://docs.lib.purdue.edu/open_access_theses/1075

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

Delft University of Technology

5. Pancham, A.K. (author). Flow over a partially liquid filled cavity.

Degree: 2014, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:d53e8774-4121-4e7d-9ea7-4573d825bb2c

►

Tonal noise and mechanical vibrations appear in flexible risers by throughput of dry gas flow. In this master thesis the effect of adding liquid to… (more)

Subjects/Keywords: cavity flow; Particle Image Velocimetry

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APA (6^th Edition):

Pancham, A. K. (. (2014). Flow over a partially liquid filled cavity. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:d53e8774-4121-4e7d-9ea7-4573d825bb2c

Chicago Manual of Style (16^th Edition):

Pancham, A K (author). “Flow over a partially liquid filled cavity.” 2014. Masters Thesis, Delft University of Technology. Accessed January 20, 2021. http://resolver.tudelft.nl/uuid:d53e8774-4121-4e7d-9ea7-4573d825bb2c.

MLA Handbook (7^th Edition):

Pancham, A K (author). “Flow over a partially liquid filled cavity.” 2014. Web. 20 Jan 2021.

Vancouver:

Pancham AK(. Flow over a partially liquid filled cavity. [Internet] [Masters thesis]. Delft University of Technology; 2014. [cited 2021 Jan 20]. Available from: http://resolver.tudelft.nl/uuid:d53e8774-4121-4e7d-9ea7-4573d825bb2c.

Council of Science Editors:

Pancham AK(. Flow over a partially liquid filled cavity. [Masters Thesis]. Delft University of Technology; 2014. Available from: http://resolver.tudelft.nl/uuid:d53e8774-4121-4e7d-9ea7-4573d825bb2c

University of Southern California

6. Lee, Seungro. High-sensitivity multidimensional photobleaching velocimetry.

Degree: PhD, Mechanical Engineering, 2008, University of Southern California

URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/53941/rec/3186

► Many techniques have been developed for measuring convective flow velocities in liquids such as LDV, PIV, molecular tagging velocimetry, etc. A little-used method that is… (more)

▼ Many techniques have been developed for measuring convective flow velocities in liquids such as LDV, PIV, molecular tagging velocimetry, etc. A little-used method that is in principle much simpler than the aforementioned techniques is Photobleaching Velocimetry. A particularly attractive feature of this technique is that a single beam may be used for both tagging and probing, though for some applications separate beams may be desirable. A significant weakness of PV is that typically high laser power is needed to obtain sufficient photobleaching that significant contrast between low-velocity (highly-bleached) and high-velocity (less-bleached) regions can be obtained.; Recently, it was discovered that this disabling of fluorescence does not occur in the absenceof light and is a kinetically controlled process in the presence of light, and is reversible on a muchlonger time scale, thus the photobleaching solutions are re-usable. Furthermore, the laser intensityper unit volume of photobleached solution with the laser path is on the order of a few mW/cm3,thus no significant heating of the water occurs.; The circular pipe and Taylor-Couette flows were tested to test the viability of dithionitesensitized photobleaching as a velocimetry tool. As results of experiment, the relationship between fluorescence intensity and the known local velocity was nearly linear for a circular pipe flow. However, the observed relation was a linear, but not matched well due to wall curvature for the TC flow. To analyze this result, the numerical simulation was studied. According to this numerical analysis, the bleaching rate coefficient, fluoresced light coefficient and Gaussian beam width were found. The bleaching rate coefficient was matched very well with experiment result. So, if we assume the velocity with given coefficients or we know the intensity, the intensity will be estimated or the velocity will be calculated using this velocimetry.; In future studies, the utility of this photobleaching velocimetry will be tested in a turbulent pipe flow, the 4-roll mill and TC flow with a minimized curvature effect. If these studies further confirm the viability of the technique, it may emerge as a simple, easily interpreted alternative to LDV or PIV in many liquid-flow velocimetry applications. Advisors/Committee Members: Ronney, Paul D. (Committee Chair), Pottebaum, Tait Sherman (Committee Member), Shing, Katherine S. (Committee Member).

Subjects/Keywords: photobleaching; velocimetry

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APA (6^th Edition):

Lee, S. (2008). High-sensitivity multidimensional photobleaching velocimetry. (Doctoral Dissertation). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/53941/rec/3186

Chicago Manual of Style (16^th Edition):

Lee, Seungro. “High-sensitivity multidimensional photobleaching velocimetry.” 2008. Doctoral Dissertation, University of Southern California. Accessed January 20, 2021. http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/53941/rec/3186.

MLA Handbook (7^th Edition):

Lee, Seungro. “High-sensitivity multidimensional photobleaching velocimetry.” 2008. Web. 20 Jan 2021.

Vancouver:

Lee S. High-sensitivity multidimensional photobleaching velocimetry. [Internet] [Doctoral dissertation]. University of Southern California; 2008. [cited 2021 Jan 20]. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/53941/rec/3186.

Council of Science Editors:

Lee S. High-sensitivity multidimensional photobleaching velocimetry. [Doctoral Dissertation]. University of Southern California; 2008. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/53941/rec/3186

University of Alberta

7. Hou, Jianfeng. Particle image velocimetry/ tracking in turbulent flow over riblet surfaces with superhydrophobic coating.

Degree: MS, Department of Mechanical Engineering, 2016, University of Alberta

URL: https://era.library.ualberta.ca/files/cv405s969r

► Riblet surfaces have been introduced as of one successful technique to reduce skin-friction. Advanced particle image velocimetry (PIV) and particle tracking velocimetry (PTV) are employed… (more)

▼ Riblet surfaces have been introduced as of one successful technique to reduce skin-friction. Advanced particle image velocimetry (PIV) and particle tracking velocimetry (PTV) are employed to investigate turbulent structures over riblet surfaces by several researchers including Suzuki and Kasagi (1994), Lee and Lee (2001) and Sasamori et al. (2014). However, a complete characterization of turbulent statistics including mean velocity, and three components of turbulence intensities and vorticities over riblet surfaces is still missing due to difficulties in measurement of small-scale near-wall turbulence. The capabilities of the planar and volumetric PIV and PTV in capturing three dimensional structures of the turbulent flow over a riblet surface with the groove spacing of 750 μm (s+ = 11) has been investigated at Reτ = 147. The two-dimensional measurements are carried out using the planar PIV and high-magnification long-range micro-PTV. The three-dimensional techniques include tomographic-PIV (tomo-PIV) and 3D-PTV which were carried out at high tracer density of 0.02 particle per pixel (ppp). Measurements over the riblet surface are evaluated in comparison with the measurements over a smooth surface, direct numerical simulation (DNS) of the turbulent flow in a smooth channel at Reτ = 150, and previous investigations of turbulent statistics over riblet surfaces. Reduction of skin-friction is calculated to be 6.1% and 7.5% from the velocity profiles in the linear viscous sublayer from 2D-PTV and profiles of the Reynolds stress from 2D-PIV, respectively. Reductions of the maximum streamwise, wall-normal and spanwise turbulence intensity are characterized to be 5.9%, 9.4% and 9.4%, respectively, over the riblet surface from 2D-PIV and 3D-PTV compared to those on the smooth surface. Three components of the fluctuating vorticity over the riblet surface measured by a tomo-PIV are first shown in experimental riblet study but no changes are spotted compared to the vorticities in the smooth surface case. As a relatively new skin-friction reduction (SFR) technique, superhydrphobic surfaces (SHSs) are capable of reducing skin-friction by entrainment of air pockets in the surface. Improvement of SFR over riblet surfaces are expected when the surfaces with riblets are coated with superhydrophobic layers. However, with only two studies by Barbier, Jenner, and D’Urso (2012) and Prince, Maynes, and Crockett (2014) in the area, it needs more detailed investigation if the SHSs are able to help riblets achieve additional SFR. The effect of riblets combined with superhydrophobic coating on skin-friction is studied by means of a planar PIV at Reτ = 141. The evaluation was acquired by comparing results between riblet surfaces with and without superhydrophobic coatings. The wall-normal turbulence intensities and the Reynolds shear stress over the coated smooth surface are both reduced by about 5% compared to the smooth surface, indicating the SFR. The analysis of the longevity of the SHS over the smooth surface reveals the loss of SHS in…

Subjects/Keywords: Drag reduction; Riblet; Superhydrophobic surface; Particle image velocimetry; Particle tracking velocimetry

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APA (6^th Edition):

Hou, J. (2016). Particle image velocimetry/ tracking in turbulent flow over riblet surfaces with superhydrophobic coating. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/cv405s969r

Chicago Manual of Style (16^th Edition):

Hou, Jianfeng. “Particle image velocimetry/ tracking in turbulent flow over riblet surfaces with superhydrophobic coating.” 2016. Masters Thesis, University of Alberta. Accessed January 20, 2021. https://era.library.ualberta.ca/files/cv405s969r.

MLA Handbook (7^th Edition):

Hou, Jianfeng. “Particle image velocimetry/ tracking in turbulent flow over riblet surfaces with superhydrophobic coating.” 2016. Web. 20 Jan 2021.

Vancouver:

Hou J. Particle image velocimetry/ tracking in turbulent flow over riblet surfaces with superhydrophobic coating. [Internet] [Masters thesis]. University of Alberta; 2016. [cited 2021 Jan 20]. Available from: https://era.library.ualberta.ca/files/cv405s969r.

Council of Science Editors:

Hou J. Particle image velocimetry/ tracking in turbulent flow over riblet surfaces with superhydrophobic coating. [Masters Thesis]. University of Alberta; 2016. Available from: https://era.library.ualberta.ca/files/cv405s969r

University of Illinois – Urbana-Champaign

8. Yan, Wei. Development of hybrid particle tracking algorithms and their applications in airflow measurement within an aircraft cabin mock-up.

Degree: PhD, 0102, 2011, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/18317

► Obtaining reliable experimental airflow data within an indoor environment is a challenging task and critical in studying and solving indoor air quality problems. The Hybrid… (more)

▼ Obtaining reliable experimental airflow data within an indoor environment is a challenging task and critical in studying and solving indoor air quality problems. The Hybrid Particle Tracking Velocimetry (HPTV) system is aimed at fulfilling this need. It was developed based on existing Particle Tracking Velocimety (PTV) and Volumetric Particle Tracking Velocimetry (VPTV) techniques. The HPTV system requires three charge-coupled device (CCD) cameras to view the illuminated flow field and capture the trajectories of the seeded particles. By adopting the hybrid spatial matching and object tracking algorithms, this system can acquire the 3-Dimensional velocity components within a large volume with relatively high spatial and temporal resolution. Synthetic images were employed to validate the performance of three components of the system: image processing, camera calibration and 3D velocity reconstruction. These three components are also the main error sources. The accuracy of the whole algorithm was analyzed and discussed through a back projection approach. The results showed that the algorithms performed effectively and accurately. The reconstructed 3D trajectories and streaks agreed well with the simulated streamline of the particles. As an overall testing and application of the system, HPTV was applied to measure the airflow pattern within a full-scale, five-row section of a Boeing 767-300 aircraft cabin mockup. A complete experimental procedure was developed and strictly followed throughout the experiment. Both global flow field at the whole cabin scale and the local flow field at the breathing zone of one passenger were studied. Each test case was also simulated numerically using a commercial computational fluid dynamic (CFD) package. Through comparison between the results from the numerical simulation and the experimental measurement, the potential model validation capability of the system was demonstrated. Possible reasons explaining the difference between experimental measurement and model prediction were discussed. Advisors/Committee Members: Zhang, Yuanhui (advisor), Zhang, Yuanhui (Committee Chair), Gates, Richard S. (committee member), Wang, Xinlei (committee member), Jacobi, Anthony M. (committee member), Georgiadis, John G. (committee member).

Subjects/Keywords: Particle tracking velocimetry; Computational fluid dynamics; Particle image velocimetry; Aircraft cabin

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APA (6^th Edition):

Yan, W. (2011). Development of hybrid particle tracking algorithms and their applications in airflow measurement within an aircraft cabin mock-up. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/18317

Chicago Manual of Style (16^th Edition):

Yan, Wei. “Development of hybrid particle tracking algorithms and their applications in airflow measurement within an aircraft cabin mock-up.” 2011. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed January 20, 2021. http://hdl.handle.net/2142/18317.

MLA Handbook (7^th Edition):

Yan, Wei. “Development of hybrid particle tracking algorithms and their applications in airflow measurement within an aircraft cabin mock-up.” 2011. Web. 20 Jan 2021.

Vancouver:

Yan W. Development of hybrid particle tracking algorithms and their applications in airflow measurement within an aircraft cabin mock-up. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2011. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/2142/18317.

Council of Science Editors:

Yan W. Development of hybrid particle tracking algorithms and their applications in airflow measurement within an aircraft cabin mock-up. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2011. Available from: http://hdl.handle.net/2142/18317

University of Minnesota

9. Jalal, Sahar. Velocity & Vorticity Transport In 3D-Printed Idealized & Realistic Human Airways Using Magnetic Resonance Velocimetry (MRV) & Particle Image Velocimetry (PIV).

Degree: PhD, Aerospace Engineering and Mechanics, 2019, University of Minnesota

URL: http://hdl.handle.net/11299/206657

► Furthering our knowledge of respiratory fluid dynamics is greatly beneficial to understanding lung diseases and improving aerosol drug delivery and mechanical ventilatory techniques. To this… (more)

▼ Furthering our knowledge of respiratory fluid dynamics is greatly beneficial to understanding lung diseases and improving aerosol drug delivery and mechanical ventilatory techniques. To this end, we develop an in-vitro platform to study detailed flow features in human airways. Idealized and realistic replicas of the bronchial tree are inserted in a flow loop circulating aqueous fluid, and detailed information on the structure-function relationship is collected using Magnetic Resonance Velocimetry (MRV) and refractive-index-matched Particle Image Velocimetry (PIV). By ‘structure’ here we indicate the anatomical and morphological features, while ‘function’ refers to momentum transport and mixing. We extract and analyze velocity and vorticity fields, as well as flow descriptors that characterize the longitudinal and lateral dispersion along the bronchial tree. We consider regimes of steady inhalation, steady exhalation, and oscillatory ventilation for a range of physiologically relevant Reynolds (Re = 100 – 5000) and Womersley (Wo = 1.2 – 12) numbers. Longitudinal dispersion is found to be higher during inhalation, while lateral dispersion is higher during exhalation. Counter-rotating streamwise vortices are observed along the airway tree due to the local curvature of the branches (Dean mechanism) and constitute one of the main transport mechanisms. At the higher Re, however, inertia induces significant non-local effects, and the vortices are transported across successive generation of bronchial branching. Flow reversal, a phenomenon consequential for gas mixing, particle transport and mechano-transduction at the epithelium, is also identified in both idealized and realistic airway geometries during steady and oscillatory regimes. The net flow drift during the ventilation cycle (steady streaming) is experimentally evaluated for the first time, and found to be much smaller than the advective flow, although not insignificant for the realistic airway geometry. The instantaneous flow fields and Reynolds stresses measured in the idealized airway model indicate great sensitivity to the inflow conditions, and show that the flow at the bifurcation is prone to unsteadiness even at regimes sometimes treated as laminar in earlier numerical studies.

Subjects/Keywords: Biofluids; Magnetic Resonance Velocimetry; Particle Image Velocimetry; Respiratory fluid mechanics

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APA (6^th Edition):

Jalal, S. (2019). Velocity & Vorticity Transport In 3D-Printed Idealized & Realistic Human Airways Using Magnetic Resonance Velocimetry (MRV) & Particle Image Velocimetry (PIV). (Doctoral Dissertation). University of Minnesota. Retrieved from http://hdl.handle.net/11299/206657

Chicago Manual of Style (16^th Edition):

Jalal, Sahar. “Velocity & Vorticity Transport In 3D-Printed Idealized & Realistic Human Airways Using Magnetic Resonance Velocimetry (MRV) & Particle Image Velocimetry (PIV).” 2019. Doctoral Dissertation, University of Minnesota. Accessed January 20, 2021. http://hdl.handle.net/11299/206657.

MLA Handbook (7^th Edition):

Jalal, Sahar. “Velocity & Vorticity Transport In 3D-Printed Idealized & Realistic Human Airways Using Magnetic Resonance Velocimetry (MRV) & Particle Image Velocimetry (PIV).” 2019. Web. 20 Jan 2021.

Vancouver:

Jalal S. Velocity & Vorticity Transport In 3D-Printed Idealized & Realistic Human Airways Using Magnetic Resonance Velocimetry (MRV) & Particle Image Velocimetry (PIV). [Internet] [Doctoral dissertation]. University of Minnesota; 2019. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/11299/206657.

Council of Science Editors:

Jalal S. Velocity & Vorticity Transport In 3D-Printed Idealized & Realistic Human Airways Using Magnetic Resonance Velocimetry (MRV) & Particle Image Velocimetry (PIV). [Doctoral Dissertation]. University of Minnesota; 2019. Available from: http://hdl.handle.net/11299/206657

Texas A&M University

10. Reyes, Denny L. Three-Dimensional Velocity Measurement Reconstruction for a Rod Bundle Array using Matched Refractive Index Particle Tracking Velocimetry.

Degree: MS, Mechanical Engineering, 2013, Texas A&M University

URL: http://hdl.handle.net/1969.1/151280

► In a pressurized water reactor (PWR), pressurized water flows over fuel rods containing radioactive uranium. Potential failure of these nuclear fuel rods is a primary… (more)

Subjects/Keywords: PTV; particle tracking velocimetry; rod bundle

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APA (6^th Edition):

Reyes, D. L. (2013). Three-Dimensional Velocity Measurement Reconstruction for a Rod Bundle Array using Matched Refractive Index Particle Tracking Velocimetry. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/151280

Chicago Manual of Style (16^th Edition):

Reyes, Denny L. “Three-Dimensional Velocity Measurement Reconstruction for a Rod Bundle Array using Matched Refractive Index Particle Tracking Velocimetry.” 2013. Masters Thesis, Texas A&M University. Accessed January 20, 2021. http://hdl.handle.net/1969.1/151280.

MLA Handbook (7^th Edition):

Reyes, Denny L. “Three-Dimensional Velocity Measurement Reconstruction for a Rod Bundle Array using Matched Refractive Index Particle Tracking Velocimetry.” 2013. Web. 20 Jan 2021.

Vancouver:

Reyes DL. Three-Dimensional Velocity Measurement Reconstruction for a Rod Bundle Array using Matched Refractive Index Particle Tracking Velocimetry. [Internet] [Masters thesis]. Texas A&M University; 2013. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1969.1/151280.

Council of Science Editors:

Reyes DL. Three-Dimensional Velocity Measurement Reconstruction for a Rod Bundle Array using Matched Refractive Index Particle Tracking Velocimetry. [Masters Thesis]. Texas A&M University; 2013. Available from: http://hdl.handle.net/1969.1/151280

University of Aberdeen

11. Gretland, Steffen Khoo. Hydrodynamics of fishing gear at twine and mesh scales : an experimental study.

Degree: PhD, 2015, University of Aberdeen

URL: https://eu03.alma.exlibrisgroup.com/view/delivery/44ABE_INST/12153320900005941 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.668968

► This study on the hydrodynamics of fishing gear focuses on fish nets. A multi-scale concept has been introduced. By decomposing the fish net structure into… (more)

Subjects/Keywords: 620; Fisheries; Fluid dynamics; Particle image velocimetry

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APA (6^th Edition):

Gretland, S. K. (2015). Hydrodynamics of fishing gear at twine and mesh scales : an experimental study. (Doctoral Dissertation). University of Aberdeen. Retrieved from https://eu03.alma.exlibrisgroup.com/view/delivery/44ABE_INST/12153320900005941 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.668968

Chicago Manual of Style (16^th Edition):

Gretland, Steffen Khoo. “Hydrodynamics of fishing gear at twine and mesh scales : an experimental study.” 2015. Doctoral Dissertation, University of Aberdeen. Accessed January 20, 2021. https://eu03.alma.exlibrisgroup.com/view/delivery/44ABE_INST/12153320900005941 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.668968.

MLA Handbook (7^th Edition):

Gretland, Steffen Khoo. “Hydrodynamics of fishing gear at twine and mesh scales : an experimental study.” 2015. Web. 20 Jan 2021.

Vancouver:

Gretland SK. Hydrodynamics of fishing gear at twine and mesh scales : an experimental study. [Internet] [Doctoral dissertation]. University of Aberdeen; 2015. [cited 2021 Jan 20]. Available from: https://eu03.alma.exlibrisgroup.com/view/delivery/44ABE_INST/12153320900005941 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.668968.

Council of Science Editors:

Gretland SK. Hydrodynamics of fishing gear at twine and mesh scales : an experimental study. [Doctoral Dissertation]. University of Aberdeen; 2015. Available from: https://eu03.alma.exlibrisgroup.com/view/delivery/44ABE_INST/12153320900005941 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.668968

University of Edinburgh

12. Sharpe, John P. The optical measurement of acoustic velocity fields.

Degree: PhD, 1988, University of Edinburgh

URL: http://hdl.handle.net/1842/12918

Subjects/Keywords: 534; Image velocimetry

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APA (6^th Edition):

Sharpe, J. P. (1988). The optical measurement of acoustic velocity fields. (Doctoral Dissertation). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/12918

Chicago Manual of Style (16^th Edition):

Sharpe, John P. “The optical measurement of acoustic velocity fields.” 1988. Doctoral Dissertation, University of Edinburgh. Accessed January 20, 2021. http://hdl.handle.net/1842/12918.

MLA Handbook (7^th Edition):

Sharpe, John P. “The optical measurement of acoustic velocity fields.” 1988. Web. 20 Jan 2021.

Vancouver:

Sharpe JP. The optical measurement of acoustic velocity fields. [Internet] [Doctoral dissertation]. University of Edinburgh; 1988. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1842/12918.

Council of Science Editors:

Sharpe JP. The optical measurement of acoustic velocity fields. [Doctoral Dissertation]. University of Edinburgh; 1988. Available from: http://hdl.handle.net/1842/12918

Louisiana State University

13. Foreman, Christopher. Characterization and verification of a closed loop wind tunnel with a linear cascade and upstream wake generator.

Degree: MSME, Mechanical Engineering, 2013, Louisiana State University

URL: etd-03212013-203144 ; https://digitalcommons.lsu.edu/gradschool_theses/2469

► A closed loop wind tunnel designed to study film cooling was completed in May 2011 along with a removable wake generating device. The test section… (more)

Subjects/Keywords: particle image velocimetry; pressure measurement blade

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APA (6^th Edition):

Foreman, C. (2013). Characterization and verification of a closed loop wind tunnel with a linear cascade and upstream wake generator. (Masters Thesis). Louisiana State University. Retrieved from etd-03212013-203144 ; https://digitalcommons.lsu.edu/gradschool_theses/2469

Chicago Manual of Style (16^th Edition):

Foreman, Christopher. “Characterization and verification of a closed loop wind tunnel with a linear cascade and upstream wake generator.” 2013. Masters Thesis, Louisiana State University. Accessed January 20, 2021. etd-03212013-203144 ; https://digitalcommons.lsu.edu/gradschool_theses/2469.

MLA Handbook (7^th Edition):

Foreman, Christopher. “Characterization and verification of a closed loop wind tunnel with a linear cascade and upstream wake generator.” 2013. Web. 20 Jan 2021.

Vancouver:

Foreman C. Characterization and verification of a closed loop wind tunnel with a linear cascade and upstream wake generator. [Internet] [Masters thesis]. Louisiana State University; 2013. [cited 2021 Jan 20]. Available from: etd-03212013-203144 ; https://digitalcommons.lsu.edu/gradschool_theses/2469.

Council of Science Editors:

Foreman C. Characterization and verification of a closed loop wind tunnel with a linear cascade and upstream wake generator. [Masters Thesis]. Louisiana State University; 2013. Available from: etd-03212013-203144 ; https://digitalcommons.lsu.edu/gradschool_theses/2469

Texas A&M University

14. Budd, John Layne. Comparison between Particle Image Velocimetry and Laser Doppler Velocimetry Measurements inside the TAMU Reactor Cavity Cooling System Experimental Test Facility.

Degree: MS, Mechanical Engineering, 2016, Texas A&M University

URL: http://hdl.handle.net/1969.1/156798

► To further efforts for studying the TAMU air-cooled Reactor Cavity Cooling System (RCCS) experimental test facility, Laser Doppler Velocimetry (LDV) experiments have been conducted to… (more)

▼ To further efforts for studying the TAMU air-cooled Reactor Cavity Cooling System (RCCS) experimental test facility, Laser Doppler Velocimetry (LDV) experiments have been conducted to acquire data on the instantaneous streamwise and spanwise components of velocity at various locations inside the upper plenum. These experiments were performed under steady-state conditions, both heated and adiabatic, using four active risers. The apparatus used for data acquisition consisted primarily of a 2-D laser head mounted onto a 3-D traverse system. Olive oil particles with an average diameter of 0.745 µm were utilized for seeding the flow. The data from these experiments has been necessary for characterizing the experimental facility by verifying the system’s repeatability and performance. In addition, LDV measurements have provided means of comparison for previously acquired PIV measurements. The compared parameters include the streamwise velocity component, as well as the streamwise and spanwise components of the turbulent intensity and the Reynolds stresses. Based on these comparisons, several differences were found between the two techniques. First, the PIV turbulent statistics did not generally agree well with those of the LDV measurements. However, data points located at regions of higher elevation tended to have better agreement. These higher regions are characterized by velocity gradients significantly smaller than those found at lower elevations. This fact may aid in explaining the discrepancies between the techniques, since PIV is known to underperform on regions with high velocity gradients. In addition, it is suspected that the number of samples for PIV, 150 in total, were insufficient for obtaining reasonable statistics. This is in contrast to LDV, which had 1500 samples per data point. Second, the comparison between the techniques appear to agree better for the adiabatic case than the heated case. Since the heated case has additional turbulence fluctuations induced by thermal mixing, this may have hindered the PIV measurements. Third, the turbulence intensities were consistently overestimated by PIV. This led to the conclusion that the PIV data contained significantly more noise than LDV data. Aside from comparisons between the two techniques, several experiments were conducted to test the repeatability and accuracy of the LDV measurements. It was found that the LDV measurements exhibited good accuracy and a high level of repeatability. Throughout these measurements, the standard deviation percentage was found to be no greater than 10%. More importantly, when averaging the values of all data points at each respective each elevation, the average value ranged between 2.2% and 3.5%. Advisors/Committee Members: Hassan, Yassin A. (advisor), Marlow, William H. (advisor), King, Maria D. (advisor).

Subjects/Keywords: Reactor Cavity Cooling System; Passive Safety System; Laser Doppler Velocimetry; Particle Image Velocimetry

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APA (6^th Edition):

Budd, J. L. (2016). Comparison between Particle Image Velocimetry and Laser Doppler Velocimetry Measurements inside the TAMU Reactor Cavity Cooling System Experimental Test Facility. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/156798

Chicago Manual of Style (16^th Edition):

Budd, John Layne. “Comparison between Particle Image Velocimetry and Laser Doppler Velocimetry Measurements inside the TAMU Reactor Cavity Cooling System Experimental Test Facility.” 2016. Masters Thesis, Texas A&M University. Accessed January 20, 2021. http://hdl.handle.net/1969.1/156798.

MLA Handbook (7^th Edition):

Budd, John Layne. “Comparison between Particle Image Velocimetry and Laser Doppler Velocimetry Measurements inside the TAMU Reactor Cavity Cooling System Experimental Test Facility.” 2016. Web. 20 Jan 2021.

Vancouver:

Budd JL. Comparison between Particle Image Velocimetry and Laser Doppler Velocimetry Measurements inside the TAMU Reactor Cavity Cooling System Experimental Test Facility. [Internet] [Masters thesis]. Texas A&M University; 2016. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1969.1/156798.

Council of Science Editors:

Budd JL. Comparison between Particle Image Velocimetry and Laser Doppler Velocimetry Measurements inside the TAMU Reactor Cavity Cooling System Experimental Test Facility. [Masters Thesis]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/156798

Pontifical Catholic University of Rio de Janeiro

15. JORGE ALBERTO ALMEIDA. [en] PARTICLE IMAGE VELOCIMETRY SYSTEM.

Degree: 2015, Pontifical Catholic University of Rio de Janeiro

URL: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=24792

►

[pt] Neste trabalho foi desenvolvido um sistema para medição de campos instantâneos de velocidade em regiões extensas do escoamento de fluidos. A técnica utilizada foi… (more)

Subjects/Keywords: [pt] VELOCIMETRIA POR IMAGENS DE PARTICULAS; [en] PARTICLE IMAGE VELOCIMETRY; [pt] VELOCIMETRIA; [en] VELOCIMETRY

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APA (6^th Edition):

ALMEIDA, J. A. (2015). [en] PARTICLE IMAGE VELOCIMETRY SYSTEM. (Thesis). Pontifical Catholic University of Rio de Janeiro. Retrieved from http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=24792

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):

ALMEIDA, JORGE ALBERTO. “[en] PARTICLE IMAGE VELOCIMETRY SYSTEM.” 2015. Thesis, Pontifical Catholic University of Rio de Janeiro. Accessed January 20, 2021. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=24792.

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

MLA Handbook (7^th Edition):

ALMEIDA, JORGE ALBERTO. “[en] PARTICLE IMAGE VELOCIMETRY SYSTEM.” 2015. Web. 20 Jan 2021.

Vancouver:

ALMEIDA JA. [en] PARTICLE IMAGE VELOCIMETRY SYSTEM. [Internet] [Thesis]. Pontifical Catholic University of Rio de Janeiro; 2015. [cited 2021 Jan 20]. Available from: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=24792.

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

Council of Science Editors:

ALMEIDA JA. [en] PARTICLE IMAGE VELOCIMETRY SYSTEM. [Thesis]. Pontifical Catholic University of Rio de Janeiro; 2015. Available from: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=24792

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

Brigham Young University

16. Pendlebury, Jonathon Remy. Light Field Imaging Applied to Reacting and Microscopic Flows.

Degree: MS, 2014, Brigham Young University

URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=6753&context=etd

► Light field imaging, specifically synthetic aperture (SA) refocusing is a method used to combine images from an array of cameras to generate a single image… (more)

▼ Light field imaging, specifically synthetic aperture (SA) refocusing is a method used to combine images from an array of cameras to generate a single image with a narrow depth of field that can be positioned arbitrarily throughout the volume under investigation. Creating a stack of narrow depth of field images at varying locations generates a focal stack that can be used to find the location of objects in three dimensions. SA refocusing is particularly useful when reconstructing particle fields that are then used to determine the movement of the fluid they are entrained in, and it can also be used for shape reconstruction. This study applies SA refocusing to reacting flows and microscopic flows by performing shape reconstruction and 3D PIV on a flame, and 3D PIV on flow through a micro channel. The reacting flows in particular posed problems with the method. Reconstruction of the flame envelope was successful except for significant elongation in the optical axis caused by cameras viewing the flame from primarily one direction. 3D PIV on reacting flows suffered heavily from the index of refraction generated by the flame. The refocusing algorithm used assumed the particles were viewed through a constant refractive index (RI) and does not compensate for variations in the RI. This variation caused apparent motion in the particles that obscured their true locations making the 3D PIV prone to error. Microscopic PIV (µPIV) was performed on a channel containing a backward facing step. A microlens array was placed in the imaging section of the setup to capture a light field from the scene, which was then refocusing using SA refocusing. PIV on these volumes was compared to a CFD simulation on the same channel. Comparisons showed that error was most significant near the boundaries and the step of the channel. The axial velocity in particular had significant error near the step were the axial velocity was highest. Flow-wise velocity, though, appeared accurate with average flow-wise error approximately 20% throughout the channel volume.

Subjects/Keywords: synthetic aperture PIV; light field imaging; particle image velocimetry; microscopic light field particle image velocimetry

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APA (6^th Edition):

Pendlebury, J. R. (2014). Light Field Imaging Applied to Reacting and Microscopic Flows. (Masters Thesis). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=6753&context=etd

Chicago Manual of Style (16^th Edition):

Pendlebury, Jonathon Remy. “Light Field Imaging Applied to Reacting and Microscopic Flows.” 2014. Masters Thesis, Brigham Young University. Accessed January 20, 2021. https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=6753&context=etd.

MLA Handbook (7^th Edition):

Pendlebury, Jonathon Remy. “Light Field Imaging Applied to Reacting and Microscopic Flows.” 2014. Web. 20 Jan 2021.

Vancouver:

Pendlebury JR. Light Field Imaging Applied to Reacting and Microscopic Flows. [Internet] [Masters thesis]. Brigham Young University; 2014. [cited 2021 Jan 20]. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=6753&context=etd.

Council of Science Editors:

Pendlebury JR. Light Field Imaging Applied to Reacting and Microscopic Flows. [Masters Thesis]. Brigham Young University; 2014. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=6753&context=etd

17. Baudoin, Raphael. Développement d'une technique de vélocimétrie laser en trois dimensions par suivi de particules basée sur le principe de défocalisation et son application autour d'obstacles en aval d'une grille. : Development and application of a time resolved 3D particle velocimetry technique around obstacles using defocus concept downstream a spacer grid.

Degree: Docteur es, Énergétique, 2015, Université Paris-Saclay (ComUE)

URL: http://www.theses.fr/2015SACLC027

►

Dans le cadre du design des assemblages combustibles, les écoulements turbulents induits par les grilles de maintien provoquent de fortes fluctuations de pression dues aux… (more)

▼

Dans le cadre du design des assemblages combustibles, les écoulements turbulents induits par les grilles de maintien provoquent de fortes fluctuations de pression dues aux niveaux de vitesses du fluide induisant la vibration des crayons combustibles. Or ces vibrations sont une source de vieillissement accéléré et d’usure prématurée des assemblages combustibles dont l’origine convient d’être mieux analysée.Dans cette l'optique, des simulations numériques ont été utilisées pour prédire les niveaux de vitesses transverses ainsi que le niveau de turbulence en aval de la grille. Cependant, les codes CFD doivent être validés avec des mesures expérimentales conduisant ainsi à une meilleure compréhension des structures mis en jeu dans le processus de mélange. Or la caractéristique de ce type d'écoulement repose sur son caractère tridimensionnel entre les faisceaux de crayons où l'accès optique est limité et à l'heure actuelle, aucune mesure de vitesse 3D n'a été réalisée. C'est pourquoi nous nous proposons de présenter dans cette étude l'application d'une technique de mesure 3D résolue en temps dans une boucle hydraulique transparente. L’approche consiste à utiliser une stratégie de suivi, dans lequel des particules traceuses individuelles sont d'abord détectées dans l’écoulement et ensuite suivies dans le temps – PTV 3D.Cette thèse présente les résultats obtenus dans une veine d’essais hydraulique en utilisant une approche de suivi à l’aide de deux caméras. Dans un premier temps, une nouvelle extension de la technique de défocalisation permettant de récupérer les positions des particules dans le temps avec une caméra est présentée et la méthodologie pour récupérer les déplacements individuels est décrite. Des cas d’application et de validation de la technique sont présentés afin de mieux quantifier les erreurs de mesures. Ensuite, la boucle hydraulique est introduite et son écoulement caractérisé par des techniques établies de mesure de vitesse. Finalement, les mesures 3D à deux caméras sont réalisées et discutées.

In order to validate the numerical simulation of the mixing phenomena downstream a spacer grid in the reactor core, reaching the 3rd velocity component through experimental studies is of major importance since mechanical structures responses are linked to transverse velocities. Nevertheless the main difficulty relies on applying a non-intrusive velocimetry technique around obstacles composed of a vertical set of rods. So far only 1D and 2D temporal studies have been performed.Hence, numerical methods have been widely used to predict correctly those transverse velocities and the turbulence level downstream the grid. However, CFD codes are to be validated with experimental measurements leading to a better understanding of the detailed flow structure in the mixing process. Therefore we propose to present in this study the application of a 3D time resolved velocity measurement technique to a hydraulic test facility. The approach is to use a tracking strategy, in which individual particles are first detected then…

Advisors/Committee Members: Darabiha, Nasser (thesis director), Zimmer, Laurent (thesis director).

Subjects/Keywords: Particle Tracking Velocimetry; 3D; Turbulence; Mécanique des fluides; Particle Tracking Velocimetry; 3D; Turbulence; Fluid mechanics

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APA (6^th Edition):

Baudoin, R. (2015). Développement d'une technique de vélocimétrie laser en trois dimensions par suivi de particules basée sur le principe de défocalisation et son application autour d'obstacles en aval d'une grille. : Development and application of a time resolved 3D particle velocimetry technique around obstacles using defocus concept downstream a spacer grid. (Doctoral Dissertation). Université Paris-Saclay (ComUE). Retrieved from http://www.theses.fr/2015SACLC027

Chicago Manual of Style (16^th Edition):

Baudoin, Raphael. “Développement d'une technique de vélocimétrie laser en trois dimensions par suivi de particules basée sur le principe de défocalisation et son application autour d'obstacles en aval d'une grille. : Development and application of a time resolved 3D particle velocimetry technique around obstacles using defocus concept downstream a spacer grid.” 2015. Doctoral Dissertation, Université Paris-Saclay (ComUE). Accessed January 20, 2021. http://www.theses.fr/2015SACLC027.

MLA Handbook (7^th Edition):

Baudoin, Raphael. “Développement d'une technique de vélocimétrie laser en trois dimensions par suivi de particules basée sur le principe de défocalisation et son application autour d'obstacles en aval d'une grille. : Development and application of a time resolved 3D particle velocimetry technique around obstacles using defocus concept downstream a spacer grid.” 2015. Web. 20 Jan 2021.

Vancouver:

Baudoin R. Développement d'une technique de vélocimétrie laser en trois dimensions par suivi de particules basée sur le principe de défocalisation et son application autour d'obstacles en aval d'une grille. : Development and application of a time resolved 3D particle velocimetry technique around obstacles using defocus concept downstream a spacer grid. [Internet] [Doctoral dissertation]. Université Paris-Saclay (ComUE); 2015. [cited 2021 Jan 20]. Available from: http://www.theses.fr/2015SACLC027.

Council of Science Editors:

Baudoin R. Développement d'une technique de vélocimétrie laser en trois dimensions par suivi de particules basée sur le principe de défocalisation et son application autour d'obstacles en aval d'une grille. : Development and application of a time resolved 3D particle velocimetry technique around obstacles using defocus concept downstream a spacer grid. [Doctoral Dissertation]. Université Paris-Saclay (ComUE); 2015. Available from: http://www.theses.fr/2015SACLC027

University of Alberta

18. Ahmad, Farhan. Design and development of a two dimensional scanning molecular tagging velocimetry (MTV) system.

Degree: MS, Department of Mechanical Engineering, 2011, University of Alberta

URL: https://era.library.ualberta.ca/files/05741s50r

► The design and development of a MTV approach, based on photobleaching, is discussed. The MTV techniques developed so far for microfluidic application provide either only… (more)

Subjects/Keywords: Molecular tagging velocimetry; Micro Particle Image Velocimetry; Caged fluorescent dye tracer; Scanning MTV; Microscale Flow Measurements

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APA (6^th Edition):

Ahmad, F. (2011). Design and development of a two dimensional scanning molecular tagging velocimetry (MTV) system. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/05741s50r

Chicago Manual of Style (16^th Edition):

Ahmad, Farhan. “Design and development of a two dimensional scanning molecular tagging velocimetry (MTV) system.” 2011. Masters Thesis, University of Alberta. Accessed January 20, 2021. https://era.library.ualberta.ca/files/05741s50r.

MLA Handbook (7^th Edition):

Ahmad, Farhan. “Design and development of a two dimensional scanning molecular tagging velocimetry (MTV) system.” 2011. Web. 20 Jan 2021.

Vancouver:

Ahmad F. Design and development of a two dimensional scanning molecular tagging velocimetry (MTV) system. [Internet] [Masters thesis]. University of Alberta; 2011. [cited 2021 Jan 20]. Available from: https://era.library.ualberta.ca/files/05741s50r.

Council of Science Editors:

Ahmad F. Design and development of a two dimensional scanning molecular tagging velocimetry (MTV) system. [Masters Thesis]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/05741s50r

Texas A&M University

19. Estrada Perez, Carlos Eduardo. Multi-Scale Experiments in Turbulent Subcooled Boiling Flow Through a Square Channel with a Single Heated Wall.

Degree: PhD, Mechanical Engineering, 2014, Texas A&M University

URL: http://hdl.handle.net/1969.1/154240

► In this work, visualization experimental techniques that provide whole-field and multi-scale measurements of the liquid turbulence parameters, liquid and heater wall temperatures, and gas phase… (more)

▼ In this work, visualization experimental techniques that provide whole-field and multi-scale measurements of the liquid turbulence parameters, liquid and heater wall temperatures, and gas phase local parameters, were used to study subcooled boiling flow through a square channel. The explored visualization techniques were: 1) Particle tracking velocimetry (PTV), which provides velocity measurements of the liquid phase, 2) High-speed shadowgraphy (HSS) which is used to study the dispersed phase dynamics. 3) Laser induced fluorescence thermometry (LIF) to measure whole-field liquid temperature fields. 4) High-speed infrared thermometry (IR-T), to study the impact of the boiling level on the heated wall temperature. A series of sensitivity studies were performed with which, knowledge for the optimal implementation of each technique was gained. Identification and quantification of uncertainties allowed to optimize the experimental conditions to achieve reliable and accurate liquid velocity measurements with the PTV technique. New procedures were designed to measure the average bubble velocity, bubble size, and void fractions. The single-nucleation site experiments provided optimal characteristics for the study of the bubble and liquid dynamics by means of PTV-shadowgraphy technique. This experiment simplified the quantification of the relationship that exist between the vapor and liquid parameters. From these results, new relationships and correlations are proposed to describe the near-wall liquid velocity behavior depending on local two-phase flow parameters. For the LIF thermometry, sensitivity studies were performed to evaluate the effects of excitation wavelength, dyes concentration ratios, solution pH, and selected emission bands on the temperature sensitivity of the two-color two-dye LIF thermometry technique. Temperature sensitivities of about 4% per °C were obtained, which is better than the traditionally used RhB-Rh60 solution which provides sensitivities of about 2% per °C. The present study is intended to lay down the experimental and data analysis foundations required to improve the understanding of subcooled flow boiling. This study also provides reliable and accurate experimental information for development and validation of two-phase flow computational models. Advisors/Committee Members: Hassan, Yassin A. (advisor), Annamalai, Kalyan (committee member), Marlow, William H. (committee member), Wen, Sy-Bor (committee member).

Subjects/Keywords: Subcooled Flow Boiling; Two-phase Flow; Particle Tracking Velocimetry (PTV); Particle Image Velocimetry; Turbulence; Flow Visualization; Laser Induced Fluorescence (LIF).

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APA (6^th Edition):

Estrada Perez, C. E. (2014). Multi-Scale Experiments in Turbulent Subcooled Boiling Flow Through a Square Channel with a Single Heated Wall. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/154240

Chicago Manual of Style (16^th Edition):

Estrada Perez, Carlos Eduardo. “Multi-Scale Experiments in Turbulent Subcooled Boiling Flow Through a Square Channel with a Single Heated Wall.” 2014. Doctoral Dissertation, Texas A&M University. Accessed January 20, 2021. http://hdl.handle.net/1969.1/154240.

MLA Handbook (7^th Edition):

Estrada Perez, Carlos Eduardo. “Multi-Scale Experiments in Turbulent Subcooled Boiling Flow Through a Square Channel with a Single Heated Wall.” 2014. Web. 20 Jan 2021.

Vancouver:

Estrada Perez CE. Multi-Scale Experiments in Turbulent Subcooled Boiling Flow Through a Square Channel with a Single Heated Wall. [Internet] [Doctoral dissertation]. Texas A&M University; 2014. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1969.1/154240.

Council of Science Editors:

Estrada Perez CE. Multi-Scale Experiments in Turbulent Subcooled Boiling Flow Through a Square Channel with a Single Heated Wall. [Doctoral Dissertation]. Texas A&M University; 2014. Available from: http://hdl.handle.net/1969.1/154240

Penn State University

20. Rowlands, Grant William. VISUALIZATION OF THE OUTLET FLOW FROM THE HEARTMATE II LEFT VENTRICULAR ASSIST DEVICE USING LASER DOPPLER AND PARTICLE IMAGE VELOCIMETRY.

Degree: 2016, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/sx61dm28w

► Left ventricular assist devices (LVADs) are implanted in patients with a diseased ventricle to maintain peripheral perfusion or as a bridge to cardiac transplant. However,… (more)

▼ Left ventricular assist devices (LVADs) are implanted in patients with a diseased ventricle to maintain peripheral perfusion or as a bridge to cardiac transplant. However, patients with an implanted LVAD, such as the HeartMate II (HMII), have experienced bleeding episodes in the abdomen. These incidents are likely caused by the cleavage or proteolytic breakdown of von Willebrand Factor (vWF), a protein in the clotting cascade. To determine the LVAD’s potential contribution to vWF mechanical destruction, in vitro studies were conducted to quantify the flow at the outlet of the HMII using particle image velocimetry (PIV) and laser Doppler velocimetry (LDV) under steady and pathophysiological conditions. In the steady flow experiment, the HMII was connected in series with a compliance chamber and operated at 8800 ± 100 RPM with an 80 mmHg rise across the pump, producing a flow rate of 3.2 ± 0.1 L/min. The second experiment included a pulsatile pump with the LVAD and compliance chamber inducing pulsatility through the HMII for a total flow rate of 5.0 ± 0.1 L/min. The pulsatile pump was operating at a rate of 105 beats per minute with a stroke volume of approximately 50 mL. Velocity profiles, Reynolds shear stresses (RSS), Reynolds normal stresses (RNS), and turbulence intensities (TI) were used to visualize the outlet flow in the cannula both quantitatively and qualitatively. Under both steady and pulsatile conditions, shear stresses orders of magnitude higher than those needed to unfurl and cleave vWF were observed in the outlet cannula. This evidence, in conjunction with high turbulence intensity values and stark contrasts in velocity profiles in certain regions, points to the positive correlation between continuous flow VADs and the potential proteolytic cleavage or mechanical destruction of vWF. Prolonged exposure of these flow conditions may lead to acquired von Willebrand Disease, which can lead to uncontrollable bleeding episodes in the abdominal region. Advisors/Committee Members: Keefe B Manning, Thesis Advisor/Co-Advisor, Margaret June Slattery, Committee Member, William O Hancock, Committee Member.

Subjects/Keywords: Ventricular Assist Device; von Willebrand Factor; Fluid Dynamics; Heartmate II; Outlet Flow; Proteolytic cleavage; Laser Doppler Velocimetry; Particle Image Velocimetry

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APA (6^th Edition):

Rowlands, G. W. (2016). VISUALIZATION OF THE OUTLET FLOW FROM THE HEARTMATE II LEFT VENTRICULAR ASSIST DEVICE USING LASER DOPPLER AND PARTICLE IMAGE VELOCIMETRY. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/sx61dm28w

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):

Rowlands, Grant William. “VISUALIZATION OF THE OUTLET FLOW FROM THE HEARTMATE II LEFT VENTRICULAR ASSIST DEVICE USING LASER DOPPLER AND PARTICLE IMAGE VELOCIMETRY.” 2016. Thesis, Penn State University. Accessed January 20, 2021. https://submit-etda.libraries.psu.edu/catalog/sx61dm28w.

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

MLA Handbook (7^th Edition):

Rowlands, Grant William. “VISUALIZATION OF THE OUTLET FLOW FROM THE HEARTMATE II LEFT VENTRICULAR ASSIST DEVICE USING LASER DOPPLER AND PARTICLE IMAGE VELOCIMETRY.” 2016. Web. 20 Jan 2021.

Vancouver:

Rowlands GW. VISUALIZATION OF THE OUTLET FLOW FROM THE HEARTMATE II LEFT VENTRICULAR ASSIST DEVICE USING LASER DOPPLER AND PARTICLE IMAGE VELOCIMETRY. [Internet] [Thesis]. Penn State University; 2016. [cited 2021 Jan 20]. Available from: https://submit-etda.libraries.psu.edu/catalog/sx61dm28w.

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

Council of Science Editors:

Rowlands GW. VISUALIZATION OF THE OUTLET FLOW FROM THE HEARTMATE II LEFT VENTRICULAR ASSIST DEVICE USING LASER DOPPLER AND PARTICLE IMAGE VELOCIMETRY. [Thesis]. Penn State University; 2016. Available from: https://submit-etda.libraries.psu.edu/catalog/sx61dm28w

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

Delft University of Technology

21. Yuvaraj, R. (author). Vortex velocimetry of air flows using Helium Filled Soap Bubbles (HFSB).

Degree: 2016, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:56419c33-1656-491c-8e85-4351300c63e2

►

This thesis work illustrates the first of its kind solution to this problem of lack of seeding at vortex core in air flows, by the… (more)

Subjects/Keywords: Particle Image Velocimetry; PIV; Helium Filled Soap Bubbles; HFSB; Vortex velocimetry; Delta wing; Neutrally buoyant particle

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APA (6^th Edition):

Yuvaraj, R. (. (2016). Vortex velocimetry of air flows using Helium Filled Soap Bubbles (HFSB). (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:56419c33-1656-491c-8e85-4351300c63e2

Chicago Manual of Style (16^th Edition):

Yuvaraj, R (author). “Vortex velocimetry of air flows using Helium Filled Soap Bubbles (HFSB).” 2016. Masters Thesis, Delft University of Technology. Accessed January 20, 2021. http://resolver.tudelft.nl/uuid:56419c33-1656-491c-8e85-4351300c63e2.

MLA Handbook (7^th Edition):

Yuvaraj, R (author). “Vortex velocimetry of air flows using Helium Filled Soap Bubbles (HFSB).” 2016. Web. 20 Jan 2021.

Vancouver:

Yuvaraj R(. Vortex velocimetry of air flows using Helium Filled Soap Bubbles (HFSB). [Internet] [Masters thesis]. Delft University of Technology; 2016. [cited 2021 Jan 20]. Available from: http://resolver.tudelft.nl/uuid:56419c33-1656-491c-8e85-4351300c63e2.

Council of Science Editors:

Yuvaraj R(. Vortex velocimetry of air flows using Helium Filled Soap Bubbles (HFSB). [Masters Thesis]. Delft University of Technology; 2016. Available from: http://resolver.tudelft.nl/uuid:56419c33-1656-491c-8e85-4351300c63e2

University of Notre Dame

22. Paul Louis Mikrut. Vibration of Axial Turbomachinery Blades: Measurement and Fluid-Structure Interactions</h1>.

Degree: Aerospace and Mechanical Engineering, 2012, University of Notre Dame

URL: https://curate.nd.edu/show/js956d5972t

► The focus of this dissertation is on turbomachinery blade vibration measurements and unsteady fluid-structure interactions. Vibration of turbomachinery blades are critical to jet engine… (more)

Subjects/Keywords: damping; turbomachinery; vibration; aerodynamic damping; particle image velocimetry; axial turbomachinery; BIV; aeroelasticity; PIV; blade image velocimetry; fluid-structure interaction; measurement

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APA (6^th Edition):

Mikrut, P. L. (2012). Vibration of Axial Turbomachinery Blades: Measurement and Fluid-Structure Interactions</h1>. (Thesis). University of Notre Dame. Retrieved from https://curate.nd.edu/show/js956d5972t

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):

Mikrut, Paul Louis. “Vibration of Axial Turbomachinery Blades: Measurement and Fluid-Structure Interactions</h1>.” 2012. Thesis, University of Notre Dame. Accessed January 20, 2021. https://curate.nd.edu/show/js956d5972t.

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

MLA Handbook (7^th Edition):

Mikrut, Paul Louis. “Vibration of Axial Turbomachinery Blades: Measurement and Fluid-Structure Interactions</h1>.” 2012. Web. 20 Jan 2021.

Vancouver:

Mikrut PL. Vibration of Axial Turbomachinery Blades: Measurement and Fluid-Structure Interactions</h1>. [Internet] [Thesis]. University of Notre Dame; 2012. [cited 2021 Jan 20]. Available from: https://curate.nd.edu/show/js956d5972t.

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

Council of Science Editors:

Mikrut PL. Vibration of Axial Turbomachinery Blades: Measurement and Fluid-Structure Interactions</h1>. [Thesis]. University of Notre Dame; 2012. Available from: https://curate.nd.edu/show/js956d5972t

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

Oregon State University

23. Edgar, Erik S. Computational and experimental investigation of steady flow fields, turbulence, and hemodynamic wall stresses in patient-specific abdominal aortic aneurysm models.

Degree: MS, Chemical Engineering, 2008, Oregon State University

URL: http://hdl.handle.net/1957/9768

► Steady flow fields and flow-induced wall stresses have been evaluated by experimental measurements and computational fluid dynamics (CFD) analysis in a series of patient-specific abdominal… (more)

▼ Steady flow fields and flow-induced wall stresses have been evaluated by experimental measurements and computational fluid dynamics (CFD) analysis in a series of patient-specific abdominal aortic aneurysm (AAA) models, over a range of Reynolds numbers (Re) from 125 to 3000 (500 to 3000 for CFD). Experimental methods used particle image velocimetry (PIV) to evaluate velocity flow fields, wall shear stress, flow fields and pressure were predicted in corresponding AAA models. Both laminar and turbulent solutions were obtained at each Re, using k-ω techniques for turbulence simulation. Qualitatively the measurements and predictions were in good agreement, especially with respect to velocity. AAA lumen shape was found to significantly alter flow structure, producing large recirculating vortices in the sacs of bulged lumens, but little to no vortical structure in nearly isodiametric lumens from patients with substantial intraluminal thrombus. Recirculating vortices were associated with adverse wall pressure gradients and retrograde, reduced wall shear stress. For example, CFD predicted at Re = 3000, wall shear stress to be near 8.0 dynes/cm2 in non-dilated aortas but only 2.2 dynes/cm2 within dilations. Quantitative agreement was limited between the measured and predicted wall shear stress and turbulence. Wall shear stress was in reasonable agreement between measurements and predictions at Re = 500, showing global wall shear stress mean values of 0.41 dyne/cm2 for experimental results versus 0.63 dyne/cm2 for computational results. However, at Re = 3000, the difference was much greater as the global wall shear stress mean value was 2.75 dyne/cm2 for experimental results versus 5.78 dyne/cm2 for computational results. Computational results associated separated flows with adverse wall pressure gradients, though experimental measurements did not confirm this. Experimental pressure measurements indicated that under these conditions, wall height was the greatest determinant of wall pressure. The complex flows formed within patient specific lumens seemed to promote turbulence, even in non-dilated sections. Turbulence was measured at all flow rates including Re = 125. At Re = 3000, fluctuating velocities of up to 0.7 times the overall mean velocity were found in the saccular dilation. Computational simulation produced lower turbulence than was found experimentally, with fluctuating velocities generally remaining below 0.1 times the overall mean velocity. This investigation shows the importance of patient-specific analysis, and provides some description of the hemodynamic forces experienced at rest and exercise conditions. The quantitative disagreements between measured and predicted results also suggest that current computational techniques are not yet sufficiently accurate for reliable clinical predictions. Advisors/Committee Members: Peattie, Robert A. (advisor), Semprini, Lewis (committee member).

Subjects/Keywords: Particle Image Velocimetry; computational fluid dynamics; Blood vessels – Mechanical properties

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APA (6^th Edition):

Edgar, E. S. (2008). Computational and experimental investigation of steady flow fields, turbulence, and hemodynamic wall stresses in patient-specific abdominal aortic aneurysm models. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/9768

Chicago Manual of Style (16^th Edition):

Edgar, Erik S. “Computational and experimental investigation of steady flow fields, turbulence, and hemodynamic wall stresses in patient-specific abdominal aortic aneurysm models.” 2008. Masters Thesis, Oregon State University. Accessed January 20, 2021. http://hdl.handle.net/1957/9768.

MLA Handbook (7^th Edition):

Edgar, Erik S. “Computational and experimental investigation of steady flow fields, turbulence, and hemodynamic wall stresses in patient-specific abdominal aortic aneurysm models.” 2008. Web. 20 Jan 2021.

Vancouver:

Edgar ES. Computational and experimental investigation of steady flow fields, turbulence, and hemodynamic wall stresses in patient-specific abdominal aortic aneurysm models. [Internet] [Masters thesis]. Oregon State University; 2008. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1957/9768.

Council of Science Editors:

Edgar ES. Computational and experimental investigation of steady flow fields, turbulence, and hemodynamic wall stresses in patient-specific abdominal aortic aneurysm models. [Masters Thesis]. Oregon State University; 2008. Available from: http://hdl.handle.net/1957/9768

University of Utah

24. Garfield, Jayden Ryan. Design and scale-up of a novel biomimetic mixing system for a closed bioreactor.

Degree: MS, Bioengineering, 2013, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/2372/rec/636

► The technologies and processes used in large scale cell bioprocessing, namelythe impeller based stirred suspension bioreactor, were designed for the growth of robustand often immortal… (more)

Subjects/Keywords: Biomimicry; Bioreactor, Design; Particle Image Velocimetry; Stem Cell

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APA (6^th Edition):

Garfield, J. R. (2013). Design and scale-up of a novel biomimetic mixing system for a closed bioreactor. (Masters Thesis). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/2372/rec/636

Chicago Manual of Style (16^th Edition):

Garfield, Jayden Ryan. “Design and scale-up of a novel biomimetic mixing system for a closed bioreactor.” 2013. Masters Thesis, University of Utah. Accessed January 20, 2021. http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/2372/rec/636.

MLA Handbook (7^th Edition):

Garfield, Jayden Ryan. “Design and scale-up of a novel biomimetic mixing system for a closed bioreactor.” 2013. Web. 20 Jan 2021.

Vancouver:

Garfield JR. Design and scale-up of a novel biomimetic mixing system for a closed bioreactor. [Internet] [Masters thesis]. University of Utah; 2013. [cited 2021 Jan 20]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/2372/rec/636.

Council of Science Editors:

Garfield JR. Design and scale-up of a novel biomimetic mixing system for a closed bioreactor. [Masters Thesis]. University of Utah; 2013. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/2372/rec/636

Rochester Institute of Technology

25. Chmiel, David. Optimization of particle image velocimetry measurements using the in-cylinder velocity flow fields in an optical engine.

Degree: Mechanical Engineering, 2000, Rochester Institute of Technology

URL: https://scholarworks.rit.edu/theses/7270

► Research work was performed in cooperation with Delphi Automotive Systems to optimize Particle Image Velocimetry (PIV) measurements using the in-cylinder velocity flow fields in Delphi's… (more)

Subjects/Keywords: Mechanical engineering; Particle image velocimetry

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APA (6^th Edition):

Chmiel, D. (2000). Optimization of particle image velocimetry measurements using the in-cylinder velocity flow fields in an optical engine. (Thesis). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/7270

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):

Chmiel, David. “Optimization of particle image velocimetry measurements using the in-cylinder velocity flow fields in an optical engine.” 2000. Thesis, Rochester Institute of Technology. Accessed January 20, 2021. https://scholarworks.rit.edu/theses/7270.

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

MLA Handbook (7^th Edition):

Chmiel, David. “Optimization of particle image velocimetry measurements using the in-cylinder velocity flow fields in an optical engine.” 2000. Web. 20 Jan 2021.

Vancouver:

Chmiel D. Optimization of particle image velocimetry measurements using the in-cylinder velocity flow fields in an optical engine. [Internet] [Thesis]. Rochester Institute of Technology; 2000. [cited 2021 Jan 20]. Available from: https://scholarworks.rit.edu/theses/7270.

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

Council of Science Editors:

Chmiel D. Optimization of particle image velocimetry measurements using the in-cylinder velocity flow fields in an optical engine. [Thesis]. Rochester Institute of Technology; 2000. Available from: https://scholarworks.rit.edu/theses/7270

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

University of Alberta

26. Setayeshgar, Alireza. Investigation of Ultrasonic Acoustic Standing Wave Separation of Particles in a Multi-wavelength Macro-scale Resonator.

Degree: PhD, Department of Mechanical Engineering, 2014, University of Alberta

URL: https://era.library.ualberta.ca/files/rn3012131

► This thesis presents an investigation of macro-scale (>5mm) multi-wavelength acoustophoresis. This is a technique used for the filtration of micro-particles from the containing suspension. It… (more)

▼ This thesis presents an investigation of macro-scale (>5mm) multi-wavelength acoustophoresis. This is a technique used for the filtration of micro-particles from the containing suspension. It uses the primary acoustic force generated by an ultrasonic acoustic pressure standing wave. Primary acoustic force is isolated in different multi-wavelength acoustic separator experiments and imaging methods are used to capture the motion of particles separating from the containing fluid. Different investigation methods and models for analyzing the macro-scale acoustic resonators are developed and the experimented acoustic resonators are characterized. A particle tracking velocimetry (PTV) approach for measuring individual particle motion is developed specifically to track particles over the lifetime of their motion as they densify to an acoustic pressure node. The applicability of primary acoustic force theory to the macro-scale acoustic resonators is validated by applying the PTV method to images of densification of mono-disperse size and poly-dispersed size particles. Utilizing the developed validated PTV method, the acoustic energy density, a parameter that can only be derived from experiments is also determined. A probability density function (PDF) modeling the location of particles for determination of acoustic energy density is also developed which is in agreement with the PTV method. The influence of dampening and scattering of the acoustic wave in macro-scale multi-wavelength is studied. This is performed by variation of piezo-electric transducer (PZT) voltage and changing the viscosity of the suspension by using different solutions of glycerol in water. The resulting acoustic energy density dependence on PZT voltage in macro-scale multi-wavelength acoustic resonators is observed to be different from that of micro-scale acoustic resonators. This effect, which is visible in all different experimented suspensions, indicates that macro-scale multi-wavelength acoustic resonators inherently show more dampening effects than micro-scale acoustic resonators.

Subjects/Keywords: Multi-wavelength resonator; Particle Tracking Velocimetry; Acoustophoresis; Ultrasonic standing wave

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APA (6^th Edition):

Setayeshgar, A. (2014). Investigation of Ultrasonic Acoustic Standing Wave Separation of Particles in a Multi-wavelength Macro-scale Resonator. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/rn3012131

Chicago Manual of Style (16^th Edition):

Setayeshgar, Alireza. “Investigation of Ultrasonic Acoustic Standing Wave Separation of Particles in a Multi-wavelength Macro-scale Resonator.” 2014. Doctoral Dissertation, University of Alberta. Accessed January 20, 2021. https://era.library.ualberta.ca/files/rn3012131.

MLA Handbook (7^th Edition):

Setayeshgar, Alireza. “Investigation of Ultrasonic Acoustic Standing Wave Separation of Particles in a Multi-wavelength Macro-scale Resonator.” 2014. Web. 20 Jan 2021.

Vancouver:

Setayeshgar A. Investigation of Ultrasonic Acoustic Standing Wave Separation of Particles in a Multi-wavelength Macro-scale Resonator. [Internet] [Doctoral dissertation]. University of Alberta; 2014. [cited 2021 Jan 20]. Available from: https://era.library.ualberta.ca/files/rn3012131.

Council of Science Editors:

Setayeshgar A. Investigation of Ultrasonic Acoustic Standing Wave Separation of Particles in a Multi-wavelength Macro-scale Resonator. [Doctoral Dissertation]. University of Alberta; 2014. Available from: https://era.library.ualberta.ca/files/rn3012131

University of Alberta

27. Bizhani, Majid. Solids Transport with Turbulent Flow of Non-Newtonian Fluid in the Horizontal Annuli.

Degree: MS, Department of Civil and Environmental Engineering, 2013, University of Alberta

URL: https://era.library.ualberta.ca/files/zk51vj02z

► An experimental investigation of turbulent non-Newtonian fluid flow and solids transport in horizontal concentric annulus is the main subject matter of this research. In the… (more)

Subjects/Keywords: PIV (Particle Image Velocimetry); Solid transport; Non-Newtonian; Turbulent

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APA (6^th Edition):

Bizhani, M. (2013). Solids Transport with Turbulent Flow of Non-Newtonian Fluid in the Horizontal Annuli. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/zk51vj02z

Chicago Manual of Style (16^th Edition):

Bizhani, Majid. “Solids Transport with Turbulent Flow of Non-Newtonian Fluid in the Horizontal Annuli.” 2013. Masters Thesis, University of Alberta. Accessed January 20, 2021. https://era.library.ualberta.ca/files/zk51vj02z.

MLA Handbook (7^th Edition):

Bizhani, Majid. “Solids Transport with Turbulent Flow of Non-Newtonian Fluid in the Horizontal Annuli.” 2013. Web. 20 Jan 2021.

Vancouver:

Bizhani M. Solids Transport with Turbulent Flow of Non-Newtonian Fluid in the Horizontal Annuli. [Internet] [Masters thesis]. University of Alberta; 2013. [cited 2021 Jan 20]. Available from: https://era.library.ualberta.ca/files/zk51vj02z.

Council of Science Editors:

Bizhani M. Solids Transport with Turbulent Flow of Non-Newtonian Fluid in the Horizontal Annuli. [Masters Thesis]. University of Alberta; 2013. Available from: https://era.library.ualberta.ca/files/zk51vj02z

University of Manchester

28. Malm, Alexander. OCT Velocimetry and X-ray Scattering Rheology of Complex Fluids.

Degree: 2016, University of Manchester

URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:297727

► Optical Coherence Tomography Velocimetry (OCTV) is a technique based on principals developed for medical imaging and is used to measure the velocity as a function… (more)

Subjects/Keywords: Optical Coherence Tomograpthy; Rheology; Complex Fluids; Velocimetry; Shear Banding; Elastic Turbulence

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APA (6^th Edition):

Malm, A. (2016). OCT Velocimetry and X-ray Scattering Rheology of Complex Fluids. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:297727

Chicago Manual of Style (16^th Edition):

Malm, Alexander. “OCT Velocimetry and X-ray Scattering Rheology of Complex Fluids.” 2016. Doctoral Dissertation, University of Manchester. Accessed January 20, 2021. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:297727.

MLA Handbook (7^th Edition):

Malm, Alexander. “OCT Velocimetry and X-ray Scattering Rheology of Complex Fluids.” 2016. Web. 20 Jan 2021.

Vancouver:

Malm A. OCT Velocimetry and X-ray Scattering Rheology of Complex Fluids. [Internet] [Doctoral dissertation]. University of Manchester; 2016. [cited 2021 Jan 20]. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:297727.

Council of Science Editors:

Malm A. OCT Velocimetry and X-ray Scattering Rheology of Complex Fluids. [Doctoral Dissertation]. University of Manchester; 2016. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:297727

University of Manchester

29. Mao, Xiaoan. A Study of Fluid Flow Phenomena around Parallel-Plate Stacks in a Standing Wave Thermoacoustic Device.

Degree: 2011, University of Manchester

URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:121715

► Thermoacoustic devices are a group of systems that make use of the thermoacoustic effect to achieve an energy conversion between thermal and acoustic energy. The… (more)

▼ Thermoacoustic devices are a group of systems that make use of the thermoacoustic effect to achieve an energy conversion between thermal and acoustic energy. The thermoacoustic effect occurs when a solid boundary is introduced into an acoustic field, and a non-zero net heat transportation takes place while the net mass transfer remains null. Thermoacoustic technologies are gaining an increasing research interest because of their potential applications for building alternative prime movers or heat pumps which do not use working fluids causing environmental damage and require very little maintenance due to their lack of moving part.However, the operation of this type of system is yet to be fully understood: fluid flow and heat transfer processes within the system components such as thermoacoustic stacks and heat exchangers still require a lot of attention. The performance of the system working with relatively low amplitude acoustic wave can be predicted by the linear thermoacoustic theory, which is already well developed. However, a high amplitude acoustic wave is usually required in order to achieve high power density or high power output. Unfortunately, the performance of such systems can be seriously degraded due to nonlinear effects, such as turbulence, minor loss or high proportion of harmonics. The lack of understanding of these effects impedes the design and construction of high efficiency systems.The work described in this thesis is focused on the study of flow phenomena taking place around parallel plate stack placed in a standing wave thermoacoustic resonator, by using advanced flow diagnostics techniques such as particle image velocimetry (PIV) and hot wire anemometry (HWA). In order to carry out the experimental study, a standing wave thermoacoustic device working at relatively low frequency of 13.1Hz was designed, commissioned and tested. The frequency response of this device was carefully investigated and compared with the analytical results using linear acoustic equations and a linear model of the loudspeaker. A further comparison with the analytical results obtained with the modelling tool DeltaEC (Design Environment for Low-amplitude Thermoacoustic Energy Conversion) was also presented. The resonator was driven from low to large pressure amplitudes with drive ratios up to 10%. A good agreement is obtained for small amplitudes, but the discrepancies become larger when the driving amplitude is increased. The analysis reveals that the large discrepancy at high amplitude can be attributed to minor losses.Following the above preliminary work, a more comprehensive study of the flow field around parallel-plate stacks was conducted by means of PIV and HWA. It was shown that the flow around the two studied parallel-plate stacks exhibits rather complicated flow features when the amplitude of the acoustic oscillation varies. Symmetrical and asymmetrical vortex shedding phenomena are observed and two distinct modes of generating ‘‘vortex streets’’ are identified. It shown that a velocity related parameter such as… Advisors/Committee Members: Jaworski, Artur.

Subjects/Keywords: thermoacoustic stack; parallel plate stack; oscillatory flow; particle image velocimetry; turbulence

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

APA (6^th Edition):

Mao, X. (2011). A Study of Fluid Flow Phenomena around Parallel-Plate Stacks in a Standing Wave Thermoacoustic Device. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:121715

Chicago Manual of Style (16^th Edition):

Mao, Xiaoan. “A Study of Fluid Flow Phenomena around Parallel-Plate Stacks in a Standing Wave Thermoacoustic Device.” 2011. Doctoral Dissertation, University of Manchester. Accessed January 20, 2021. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:121715.

MLA Handbook (7^th Edition):

Mao, Xiaoan. “A Study of Fluid Flow Phenomena around Parallel-Plate Stacks in a Standing Wave Thermoacoustic Device.” 2011. Web. 20 Jan 2021.

Vancouver:

Mao X. A Study of Fluid Flow Phenomena around Parallel-Plate Stacks in a Standing Wave Thermoacoustic Device. [Internet] [Doctoral dissertation]. University of Manchester; 2011. [cited 2021 Jan 20]. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:121715.

Council of Science Editors:

Mao X. A Study of Fluid Flow Phenomena around Parallel-Plate Stacks in a Standing Wave Thermoacoustic Device. [Doctoral Dissertation]. University of Manchester; 2011. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:121715

Vanderbilt University

30. Grady, Nathan Ryan. Laser Diagnostics of Turbulent Flames in High Speed Flows.

Degree: PhD, Mechanical Engineering, 2015, Vanderbilt University

URL: http://hdl.handle.net/1803/13454

► High speed turbulent flames can be found in most aerospace propulsion devices. In order to understand the behavior and phenomenological nature of combustion in these… (more)

▼ High speed turbulent flames can be found in most aerospace propulsion devices. In order to understand the behavior and phenomenological nature of combustion in these devices time resolved, non-invasive, in situ laser diagnostic measurements are needed. In this dissertation, laser diagnostics are used to study freely propagating turbulent premixed flames, and non premixed flames in a model scramjet combustor. In addition, a new laser method is developed to measure velocity profiles in reacting regions without seed particles. Premixed turbulent flames have been studied extensively over burner stabilized flames. However, the flame propagation in these burners is usually affected by the burner itself resulting in a geometric dependent propagation. Therefore, a fundamental understanding of the interaction between turbulence and premixed flames is obscured. Alternatively, spherically propagating flames (also known as flame kernels) that do not have these geometric dependencies can be studied using flame bombs. While flame bomb studies have been very successful in elucidating the interaction between turbulence and premixed flames, they typically have limited optical access and a mean radial inflow which can inhibit flame propagation. Therefore, a new means of studying flame kernels is described using a turbulent wind tunnel where flame kernels are allowed to freely propagate downstream. The results obtained in this new device are compared with traditional flame bomb measurements. The reaction progress of a non-premixed combustion inside a cavity-piloted scramjet combustor was determined by measuring all major species and temperature using spontaneous UV Raman scattering. A 70% CH4/30% H2 fuel blend was used to approximate the reactivity of liquid jet fuels, and minimize the number of Raman spectral lines to ensure tractable data sets. Inside the cavity, H2 fuel quickly burnt off while the CH4 and CO persisted until the fuel path reached the cavity shear layer. Finally, a new molecular tagging velocimetry method of obtaining non-seeded velocity measurements inside a reaction zone is described. This method uses a two-photon process to dissociate H2O and create vibrationally excited OH photofragments which can then be differentiated from flame generated OH radicals that are predominately in the vibrational ground state to make single-shot velocity measurements. Advisors/Committee Members: A.V. Anilkumar (committee member), Suresh Menon (committee member), Joseph Wehrmeyer (committee member), Greg Walker (committee member), Robert W. Pitz (Committee Chair).

Subjects/Keywords: flame kernel; molecular tagging velocimetry; scramjet; turbulent combustion; laser diagnostics

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

APA (6^th Edition):

Grady, N. R. (2015). Laser Diagnostics of Turbulent Flames in High Speed Flows. (Doctoral Dissertation). Vanderbilt University. Retrieved from http://hdl.handle.net/1803/13454

Chicago Manual of Style (16^th Edition):

Grady, Nathan Ryan. “Laser Diagnostics of Turbulent Flames in High Speed Flows.” 2015. Doctoral Dissertation, Vanderbilt University. Accessed January 20, 2021. http://hdl.handle.net/1803/13454.

MLA Handbook (7^th Edition):

Grady, Nathan Ryan. “Laser Diagnostics of Turbulent Flames in High Speed Flows.” 2015. Web. 20 Jan 2021.

Vancouver:

Grady NR. Laser Diagnostics of Turbulent Flames in High Speed Flows. [Internet] [Doctoral dissertation]. Vanderbilt University; 2015. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1803/13454.

Council of Science Editors:

Grady NR. Laser Diagnostics of Turbulent Flames in High Speed Flows. [Doctoral Dissertation]. Vanderbilt University; 2015. Available from: http://hdl.handle.net/1803/13454

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