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Grand Valley State University
1.
Crosby, Mowgli J.
A CFD Study on the Performance of High Speed Planing Hulls.
Degree: 2019, Grand Valley State University
URL: https://scholarworks.gvsu.edu/theses/966 
► Most high speed water craft are able to achieve high speeds through the use of a planing hull. Planing hulls use hydrodynamic forces to lift…
(more)
▼ Most high speed water craft are able to achieve high speeds through the use of a planing hull. Planing hulls use hydrodynamic forces to lift a portion of the vessel out of the water, reducing drag, and allowing for greater speeds. Determining the flow around such vessels is traditionally achieved using a scale model in a tow tank. The purpose of this study was to analyze the performance of a high speed planing hull determine the effects of several geometric features using computational fluid dynamics rather than traditional experimentation. The goal was to determine the best configuration to ensure the lowest resistance on the hull at high speed. This was achieved using STAR CCM+ to solve a three dimensional computational analysis for the multiphase flow and dynamic motion of a planing hull. An initial simulation was created for a 25 ft base hull and validated using experimental data from a towing tank. After developing an accurate simulation for a single hull, the hull geometry was modified to test for the effects of the keel line geometry, deadrise angle, and spray rail location.
A full factorial DOE analysis was performed to examine the effects of the tested geometric features and the interactions between them. The results from this analysis showed that the tested features had a significant effect on the performance of the hull. Increasing the deadrise angle resulted in a decrease in sinkage, an increase in trim angle, and an increase in the total drag on the hull. Raising the keel line height caused a decrease in trim angle and sinkage, while increasing the total drag. These two terms had a significant interaction. As one increased, the relative effect of changing the other also increased for total drag. The final geometric feature tested was the spray rails. Adding spray rails to the bottom of the hull significantly increased the sinkage. Moving the location of the spray rails away from the center of the hull increased the total drag. This showed that the total drag could be significantly reduced by altering these geometric features of the hull.
Subjects/Keywords: high speed water craft; planing hull; hydrodynamics; computational fluid dynamics; Computational Engineering; Dynamics and Dynamical Systems
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APA (6th Edition):
Crosby, M. J. (2019). A CFD Study on the Performance of High Speed Planing Hulls. (Thesis). Grand Valley State University. Retrieved from https://scholarworks.gvsu.edu/theses/966
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Crosby, Mowgli J. “A CFD Study on the Performance of High Speed Planing Hulls.” 2019. Thesis, Grand Valley State University. Accessed January 18, 2021.
https://scholarworks.gvsu.edu/theses/966.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Crosby, Mowgli J. “A CFD Study on the Performance of High Speed Planing Hulls.” 2019. Web. 18 Jan 2021.
Vancouver:
Crosby MJ. A CFD Study on the Performance of High Speed Planing Hulls. [Internet] [Thesis]. Grand Valley State University; 2019. [cited 2021 Jan 18].
Available from: https://scholarworks.gvsu.edu/theses/966.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Crosby MJ. A CFD Study on the Performance of High Speed Planing Hulls. [Thesis]. Grand Valley State University; 2019. Available from: https://scholarworks.gvsu.edu/theses/966
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
2.
Kokkonen, Toni.
CFD analysis of stepped planing vessels.
Degree: Mechanics, 2018, KTH
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-250023
► High speed planing hulls are currently widely used for example in recreational and emergency vessel applications. However, very little CFD research has been done…
(more)
▼ High speed planing hulls are currently widely used for example in recreational and emergency vessel applications. However, very little CFD research has been done for planing vessels, especially for those with stepped hulls. A validated CFD method for planing stepped hulls could be a valuable improvement for the design phase of such hulls. In this thesis, a CFD method for stepped hulls, with a primary focus on two-step hulls, is developed using STAR-CCM+. As a secondary objective, porpoising instability of two-step hulls is investigated. The simulations are divided into two parts: In the first part a method is developed and validated with existing experimental and numerical data for a simple model scale planing hull with one step. In the second part the method is applied for two two-step hulls provided with Hydrolift AS. A maximum two degrees of freedom, trim and heave, are used, as well as RANS based k-w SST turbulence model and Volume of Fluid (VOF) as a free surface model. The results for the one-step hull mostly corresponded well with the validation data. For the two-step hulls, validation data did not exists and they were first simulated with a fixed trim and sinkage and compered between each other. In the simulations with free trim and heave both hulls experienced unstable porpoising behavior.
Subjects/Keywords: Computational Fluid Dynamics (CFD); Ship hydrodynamics; Planing hull; Stepped hull; STAR-CCM+; Overset mesh; Volume of fluid (VOF); Reynolds averaged Navier-Stokes equations (RANS); Dynamic instabilities; Engineering and Technology; Teknik och teknologier
…problems faced when simulating planing hulls numerically.
Planing hull simulations carried out by… …investigating the stability and performance of a
stepped planing hull.
STAR-CCM+ is a widely used… …planing hull is important in order to avoid low
pressures. This is achieved by using a hard… …modifications used in planing hulls to increase the lift and reduce the friction
on the hull.
A… …For high Reynolds
number flows, such as those around a planing hull, the boundary layer is…
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APA (6th Edition):
Kokkonen, T. (2018). CFD analysis of stepped planing vessels. (Thesis). KTH. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-250023
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kokkonen, Toni. “CFD analysis of stepped planing vessels.” 2018. Thesis, KTH. Accessed January 18, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-250023.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kokkonen, Toni. “CFD analysis of stepped planing vessels.” 2018. Web. 18 Jan 2021.
Vancouver:
Kokkonen T. CFD analysis of stepped planing vessels. [Internet] [Thesis]. KTH; 2018. [cited 2021 Jan 18].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-250023.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kokkonen T. CFD analysis of stepped planing vessels. [Thesis]. KTH; 2018. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-250023
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
3.
Fergen, Pamela Sue.
Selection of Pressure Equation for Preliminary Planing Hull Design Using Modified Analytical Hierarchy Process.
Degree: PhD, Mechanical Engineering, 2009, Old Dominion University
URL: 9781109566321
;
https://digitalcommons.odu.edu/mae_etds/118
► In the early stages of design when data availability is limited, engineers often times rely upon experience and regression analysis to select the most…
(more)
▼ In the early stages of design when data availability is limited, engineers often times rely upon experience and regression analysis to select the most suitable design equation among many competitive ones. This study presents an alternative that applies a modified Analytical Hierarchy Process (AHP) to select the most suitable design equation. The Analytical Hierarchy Process, a multi-criteria decision making method, has been utilized in the business and management world to collect and evaluate experts' opinions in order to arrive at a final decision. The Analytical Hierarchy Process employed here will treat each of the design equations as an expert and allow the decision maker to evaluate and weight the opinions of the experts. Selecting an impact pressure equation among seven semi-empirical and three classification societies' design equations for
planing hull design is used as an example to facilitate the study presented in this dissertation.
The criteria and their associated weights that make up the decision making hierarchy of the Analytical Hierarchy Process are first established, with which the overall weighting coefficients can be computed to rank the candidate design equations. A preview sensitivity analysis is applied to screen out unfavorable design equations. The Analytical Hierarchy Process is then applied to select the most suitable impact pressure equation for twenty
planing hulls. Next, a post sensitivity analysis is applied to ensure the robustness of the decision process. The results of such selection are compared with those of full scale test data. The implemented Analytical Hierarchy Process accurately selects the optimal pressure equation for fifteen of the twenty test cases. While it fails to select the best pressure design equation for the other five cases, it does provide recommendations that can lead to the selection of the right design equation.
This study has demonstrated that the Analytical Hierarchy Process holds potential to be effective not only in selecting a suitable pressure equation for
planing hull design but also in finding the strengths and the weaknesses of each of the pressure equations under consideration.
Advisors/Committee Members: Gene Hou, Han Bao, Anthony Dean.
Subjects/Keywords: High-speed craft; Planing hull design; Pressure equation; Navel engineering; Mechanical Engineering
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APA (6th Edition):
Fergen, P. S. (2009). Selection of Pressure Equation for Preliminary Planing Hull Design Using Modified Analytical Hierarchy Process. (Doctoral Dissertation). Old Dominion University. Retrieved from 9781109566321 ; https://digitalcommons.odu.edu/mae_etds/118
Chicago Manual of Style (16th Edition):
Fergen, Pamela Sue. “Selection of Pressure Equation for Preliminary Planing Hull Design Using Modified Analytical Hierarchy Process.” 2009. Doctoral Dissertation, Old Dominion University. Accessed January 18, 2021.
9781109566321 ; https://digitalcommons.odu.edu/mae_etds/118.
MLA Handbook (7th Edition):
Fergen, Pamela Sue. “Selection of Pressure Equation for Preliminary Planing Hull Design Using Modified Analytical Hierarchy Process.” 2009. Web. 18 Jan 2021.
Vancouver:
Fergen PS. Selection of Pressure Equation for Preliminary Planing Hull Design Using Modified Analytical Hierarchy Process. [Internet] [Doctoral dissertation]. Old Dominion University; 2009. [cited 2021 Jan 18].
Available from: 9781109566321 ; https://digitalcommons.odu.edu/mae_etds/118.
Council of Science Editors:
Fergen PS. Selection of Pressure Equation for Preliminary Planing Hull Design Using Modified Analytical Hierarchy Process. [Doctoral Dissertation]. Old Dominion University; 2009. Available from: 9781109566321 ; https://digitalcommons.odu.edu/mae_etds/118
University of Michigan
4.
Savander, Brant Raymond.
Planing hull steady hydrodynamics.
Degree: PhD, Ocean engineering, 1997, University of Michigan
URL: http://hdl.handle.net/2027.42/130352
► The goal of the research performed in this thesis is to develop a tool based on rational mechanics that will provide insight into the flow…
(more)
▼ The goal of the research performed in this thesis is to develop a tool based on rational mechanics that will provide insight into the flow physics that govern the steady
planing of a vessel, and to provide the
planing vessel designer with an engineering tool for predicting
planing hull lift and drag. The hydrodynamics associated with
planing hulls remains a challenging theoretical problem due primarily to the existence of a spray jet at the
hull-free surface intersection. Large pressure gradients are experienced in this region due to large flow accelerations associated with the presence of the jet. The large flow accelerations are primarily restricted to the transverse plane. This transverse nature of the flow suggests that the large gradients can be captured approximately in a two dimensional model. Vorus (1996) has developed a free surface impact theory to be used with slender body theory (SBT) to predict steady
planing hydrodynamics. The model developed in this thesis is generated by first formulating the three dimensional (3D) boundary value problem, and then adding and subtracting the slender body theory (SBT) formulation. The difference between 3D and SBT represents the three dimensional correction to the slender body solution. The Vorus (1996) model is extended to allow for incorporation of these additional terms. Since the large gradients are captured in the impact model which is used with SBT, the resulting correction terms are generally well behaved functions that allow for numerical iteration to the convergent solution of the three dimensional problem. Purely computational techniques, such as panel methods, have trouble capturing
planing hydrodynamics due to the extremely challenging non-linear physics associated with the spray jet and the fact that the
hull wetted surface is not known in advance. This problem becomes further complicated when non-prismatic
hull geometry is introduced. The three dimensional iterative approach presented in this work allows for resolution of the spray jet details and determination of the wetted surface for general
hull shapes within the context of the solution procedure. A comparative study is carried out illustrating the influence that varying
hull geometry has on lift and drag. Numerical results from both the 3D and SBT models are compared with experimental force and pressure data.
Advisors/Committee Members: Vorus, William S. (advisor).
Subjects/Keywords: Hull; Hydrodynamics; Planing; Slender Body Theory; Steady
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APA (6th Edition):
Savander, B. R. (1997). Planing hull steady hydrodynamics. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/130352
Chicago Manual of Style (16th Edition):
Savander, Brant Raymond. “Planing hull steady hydrodynamics.” 1997. Doctoral Dissertation, University of Michigan. Accessed January 18, 2021.
http://hdl.handle.net/2027.42/130352.
MLA Handbook (7th Edition):
Savander, Brant Raymond. “Planing hull steady hydrodynamics.” 1997. Web. 18 Jan 2021.
Vancouver:
Savander BR. Planing hull steady hydrodynamics. [Internet] [Doctoral dissertation]. University of Michigan; 1997. [cited 2021 Jan 18].
Available from: http://hdl.handle.net/2027.42/130352.
Council of Science Editors:
Savander BR. Planing hull steady hydrodynamics. [Doctoral Dissertation]. University of Michigan; 1997. Available from: http://hdl.handle.net/2027.42/130352
Virginia Tech
5.
Lee, Evan Joseph.
Advancements of Stepped Planing Hulls.
Degree: PhD, Aerospace Engineering, 2014, Virginia Tech
URL: http://hdl.handle.net/10919/51123
► The straight line calm water performance of stepped planing hulls has been studied experimentally, by prediction method, and numerically. A model test was conducted to…
(more)
▼ The straight line calm water performance of stepped
planing hulls has been studied experimentally, by prediction method, and numerically. A model test was conducted to provide a systematic understanding of the effects that displacement and step location have on the performance of a stepped
planing hull. Ten different step configurations were tested at three different displacements and over a range of four different speeds in calm water. Seven of these configurations were tested at two different Longitudinal Center of Gravity (LCG) locations. Of all the configurations tested, the stepped
hull configurations showed reduced resistance compared to the unstepped
hull. The configurations with the largest step height aft showed the least amount of resistance over the speed range tested. Increasing displacement and shifting LCG had similar effects on craft performance for both stepped and unstepped hulls. The current stepped
hull prediction method was expanded to include a three dimension wave profile and the ability for the stagnation line to cross the step. Using previous model test data and existing two dimension wave profile equations, a single equation was developed to predict the three dimension wave profile aft of a step. Formulations were added to Savitsky's
planing prediction method to include very high speed craft and chines dry conditions. Lastly, two simulations were performed using two computational fluid dynamics numerical tools, OpenFOAM, and NFA. The results of these simulations were compared to the experimental test results to assess each code's relative strengths and weaknesses for use in detail design of stepped
planing craft.
Advisors/Committee Members: McCue-Weil, Leigh S. (committeechair), Neu, Wayne L. (committee member), Coats, Timothy (committee member), Brown, Alan J. (committee member).
Subjects/Keywords: Stepped Planing Hull; High Speed Craft; Hydrodynamics
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APA (6th Edition):
Lee, E. J. (2014). Advancements of Stepped Planing Hulls. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/51123
Chicago Manual of Style (16th Edition):
Lee, Evan Joseph. “Advancements of Stepped Planing Hulls.” 2014. Doctoral Dissertation, Virginia Tech. Accessed January 18, 2021.
http://hdl.handle.net/10919/51123.
MLA Handbook (7th Edition):
Lee, Evan Joseph. “Advancements of Stepped Planing Hulls.” 2014. Web. 18 Jan 2021.
Vancouver:
Lee EJ. Advancements of Stepped Planing Hulls. [Internet] [Doctoral dissertation]. Virginia Tech; 2014. [cited 2021 Jan 18].
Available from: http://hdl.handle.net/10919/51123.
Council of Science Editors:
Lee EJ. Advancements of Stepped Planing Hulls. [Doctoral Dissertation]. Virginia Tech; 2014. Available from: http://hdl.handle.net/10919/51123
6.
Bay, Raymond James.
Improved Design Method for Cambered Stepped Hulls with High Deadrise.
Degree: MS, Ocean Engineering, 2019, Virginia Tech
URL: http://hdl.handle.net/10919/90298
► Eugene Clement developed a new design method to improve the performance of ultra-fast planing crafts. A planing craft uses the force generated from the flow…
(more)
▼ Eugene Clement developed a new design method to improve the performance of ultra-fast
planing crafts. A
planing craft uses the force generated from the flow of water over the bottom to lift the vessel without the use of the static buoyancy force that classic boat designs rely on. Clement wanted to improve the performance of the
planing vessel by reducing the total drag force caused by the flow of water on the bottom of the vessel. ClementâĂŹs design method involves reducing the wetted surface area which reduces drag. Reducing the wetted surface area would normally cause the lifting force on the vessel to reduce, but with the addition of curvature in the smaller wetted surface area, the lifting force would remain the same. ClementâĂŹs new design method requires multiple iterations to obtain an optimal design. The method limits the angle of the vessels bottom relative to horizontal to under 15 degree. The goal of this thesis is to create a new design method for
planing vessels with bottoms that have an incline of 15 degrees or more relative to horizontal. The design method is created using Computational Fluid Dynamics (CFD) solver to model the
planing surface moving through water. The CFD solver is validated with experimental test performed at the United States Naval Academy. The improved design method uses equations that can predict the forces and other design characteristics based on the desired vessel weight and seakeeping requirements.
Advisors/Committee Members: Brizzolara, Stefano (committeechair), Paterson, Eric G. (committee member), Brown, Alan J. (committee member).
Subjects/Keywords: CFD; Planing Surface; Cambered Step Hull
…2
1.3
Cambered Step Planing Hull [4]… …x28;1.2)
Planing Hull Theory
The basics of planing can be understood with the simple… …3
Clement’s Dynaplane Concept
The planing hull design can be modified with the addition… …by the small shaded region at the stern of the planing hull. Clement’s
design process for… …the cambered section is presented in Section 1.3.1.
Figure 1.3: Cambered Step Planing Hull…
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APA (6th Edition):
Bay, R. J. (2019). Improved Design Method for Cambered Stepped Hulls with High Deadrise. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/90298
Chicago Manual of Style (16th Edition):
Bay, Raymond James. “Improved Design Method for Cambered Stepped Hulls with High Deadrise.” 2019. Masters Thesis, Virginia Tech. Accessed January 18, 2021.
http://hdl.handle.net/10919/90298.
MLA Handbook (7th Edition):
Bay, Raymond James. “Improved Design Method for Cambered Stepped Hulls with High Deadrise.” 2019. Web. 18 Jan 2021.
Vancouver:
Bay RJ. Improved Design Method for Cambered Stepped Hulls with High Deadrise. [Internet] [Masters thesis]. Virginia Tech; 2019. [cited 2021 Jan 18].
Available from: http://hdl.handle.net/10919/90298.
Council of Science Editors:
Bay RJ. Improved Design Method for Cambered Stepped Hulls with High Deadrise. [Masters Thesis]. Virginia Tech; 2019. Available from: http://hdl.handle.net/10919/90298
Virginia Tech
7.
Li, Jiahui.
Verification and Validation Study of OpenFOAM on the Generic Prismatic Planing Hull Form.
Degree: MS, Ocean Engineering, 2019, Virginia Tech
URL: http://hdl.handle.net/10919/89904
► The paper presents the first series of results obtained in an ongoing validation and verification study of inter-dynamic OpenFOAM solver framework on a new set…
(more)
▼ The paper presents the first series of results obtained in an ongoing validation and verification study of inter-dynamic OpenFOAM solver framework on a new set of high quality experimental tests performed on a large (2.4m long) generic
planing hull model (GPPH) with high deadrise (18deg), from the pre-planning (Fn∇=2.6) to fully
planing (Fn∇=5.7) regimes. This test case is a good benchmark for the free surface capturing model implemented in OpenFOAM which is based on a rather simple transport equation for an additional scalar field that defines the fraction of water in each cell of the computational mesh. This model, in spite of its simplicity, seems capable of reproducing complex violent free surface flows such as that observed in
planing hulls, that includes jet spray forming on the bottom and detaching from the chine of the
planing hull and overturning waves off the wet chine region, with some nuances. The dependence of the flow solution on the mesh quality is presented and discussed. Practical indication of the level of uncertainty of CFD models for the prediction of the calm water hydrodynamics of the GPPH is given at the highest simulated speed using both fixed and free attitude simulation solutions. Predictions are then extended to the whole speed range, including resistance components, dynamic trim, heave, wetted chine length, and wetted keel length.The effect due to algorithms is also discussed by modifying the settings in wall functions and solvers for the improvements of future simulation.
Advisors/Committee Members: Brizzolara, Stefano (committeechair), Brown, Alan J. (committee member), Paterson, Eric G. (committee member).
Subjects/Keywords: Planing Hull; GPPH; OpenFOAM; URANS
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APA ·
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APA (6th Edition):
Li, J. (2019). Verification and Validation Study of OpenFOAM on the Generic Prismatic Planing Hull Form. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/89904
Chicago Manual of Style (16th Edition):
Li, Jiahui. “Verification and Validation Study of OpenFOAM on the Generic Prismatic Planing Hull Form.” 2019. Masters Thesis, Virginia Tech. Accessed January 18, 2021.
http://hdl.handle.net/10919/89904.
MLA Handbook (7th Edition):
Li, Jiahui. “Verification and Validation Study of OpenFOAM on the Generic Prismatic Planing Hull Form.” 2019. Web. 18 Jan 2021.
Vancouver:
Li J. Verification and Validation Study of OpenFOAM on the Generic Prismatic Planing Hull Form. [Internet] [Masters thesis]. Virginia Tech; 2019. [cited 2021 Jan 18].
Available from: http://hdl.handle.net/10919/89904.
Council of Science Editors:
Li J. Verification and Validation Study of OpenFOAM on the Generic Prismatic Planing Hull Form. [Masters Thesis]. Virginia Tech; 2019. Available from: http://hdl.handle.net/10919/89904
Washington State University
8.
[No author].
Numerical Modeling of Multi-Surface Planing Hull Hydrodynamics Using Source-Based Boundary Element Method
.
Degree: 2017, Washington State University
URL: http://hdl.handle.net/2376/12930
► A source-based boundary element method (BEM) built on the potential flow theory is developed to study hydrodynamic characteristics of multi-surface planing hulls. Initially, both 2D…
(more)
▼ A source-based boundary element method (BEM) built on the potential flow theory is developed to study hydrodynamic characteristics of multi-surface
planing hulls. Initially, both 2D and 3D numerical models are implemented and validated. Upon validation, the numerical model is applied for three specific
hull types to predict their hydrodynamic properties. Firstly, the hydrodynamic performance of a stepped
hull with variable deadrise angles is investigated. Secondly, the hydrodynamic inference effect on a symmetric catamaran
hull is studied. And lastly, the hydrodynamic parameters are analyzed for the asymmetric catamaran setup.
The validation results are presented for the lift coefficient, center of pressure, water surface elevation around the
hull, and pressure coefficient. Numerical results are compared with those found in the technical literature. Parametric calculations are carried out for a stepped
hull with variable deadrise angles in two-speed regimes and the results are shown for hydrodynamic characteristics of the
hull. For the catamaran design, the hydrodynamic interaction between hulls
planing parallel to each other is known to become significant when the spacing between hulls is sufficiently small. To investigate this interference effect, calculations are carried out for symmetric hulls in variable speed regimes at different spacings,
hull aspect ratio, and deadrise angles. Again, for asymmetric
planing hulls, the numerical results are validated with available experimental data and empirical correlations. Parametric calculation results are presented for the lift coefficient and the center of pressure for variable
hull geometry, spacings, and speed regimes.
It was observed that the wetted surfaces of both fore
hull and aft body of the stepped
hull have a direct impact on hydrodynamic forces. The downstream shape of the air-ventilated cavity changes drastically for variable aft body compared to the variable fore
hull. For the catamaran
hull, the interaction effect on the lift is stronger for longer hulls and larger deadrise angles at both moderate and high Froude numbers. The smaller spacings between two demi-hulls yield higher impact on different hydrodynamic parameters. Similarly, for asymmetric catamaran configuration, the lift coefficient is found to increase at smaller
hull spacings. However, it decreases at higher Froude numbers and higher deadrise angles.
Advisors/Committee Members: Matveev, Konstantin I (advisor).
Subjects/Keywords: Mechanical engineering;
Boundary Element Method (BEM);
Catamarans;
Computation Fluid Dynamics (CFD);
Numerical Modeling;
Planing Hull;
Potential Flow
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APA (6th Edition):
author], [. (2017). Numerical Modeling of Multi-Surface Planing Hull Hydrodynamics Using Source-Based Boundary Element Method
. (Thesis). Washington State University. Retrieved from http://hdl.handle.net/2376/12930
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
author], [No. “Numerical Modeling of Multi-Surface Planing Hull Hydrodynamics Using Source-Based Boundary Element Method
.” 2017. Thesis, Washington State University. Accessed January 18, 2021.
http://hdl.handle.net/2376/12930.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
author], [No. “Numerical Modeling of Multi-Surface Planing Hull Hydrodynamics Using Source-Based Boundary Element Method
.” 2017. Web. 18 Jan 2021.
Vancouver:
author] [. Numerical Modeling of Multi-Surface Planing Hull Hydrodynamics Using Source-Based Boundary Element Method
. [Internet] [Thesis]. Washington State University; 2017. [cited 2021 Jan 18].
Available from: http://hdl.handle.net/2376/12930.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
author] [. Numerical Modeling of Multi-Surface Planing Hull Hydrodynamics Using Source-Based Boundary Element Method
. [Thesis]. Washington State University; 2017. Available from: http://hdl.handle.net/2376/12930
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
. 
Open Access Theses and Dissertations
