Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/13225
Title: A SVD-GFD Method to simulate 3D Moving Boundary Flow Problems
Authors: WANG XIAOYONG
Keywords: Incompressible Navier-Stokes, Moving body, Moving boundary, Mesh free method, 3D, Generalized finite difference
Issue Date: 3-Apr-2008
Source: WANG XIAOYONG (2008-04-03). A SVD-GFD Method to simulate 3D Moving Boundary Flow Problems. ScholarBank@NUS Repository.
Abstract: A singular value decomposition based generalized finite difference scheme (SVD-GFD) is proposed for the simulation of three-dimensional (3D) flows with arbitrary geometry. The SVD-GFD scheme is based on 3D Taylor series expansion and second-order spatial accuracy is maintained. The ALE form of the incompressible Navier-Stokes equations is used to model the motion of the boundaries or bodies. The current method combines the merits of traditional finite difference method and mesh free method. The ALE form of the Navier-Stokes equations is integrated by a fractional time step method. The ALE-SVD-GFD method is applied on a series of 3D problems involving stationary and moving boundaries, such as the lid-driven cavity problem, the oscillating sphere problem, steady and unsteady flow past a sphere, flow past a torus, and 3D flapping wing flows etc. The results compare well with those in the literature. The ALE-SVD-GFD method has been successfully implemented to simulate the 3D flows driven by a flapping and rotating wing, and by two independently actuated wings. The present work demonstrates the potential of the ALE-SVD-GFD method for the simulation of complex 3D moving boundary/body problems.
URI: http://scholarbank.nus.edu.sg/handle/10635/13225
Appears in Collections:Ph.D Theses (Open)

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02 Acknowledgements.pdf15.26 kBAdobe PDF

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03 Table of contents.pdf20.67 kBAdobe PDF

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04 Summary.pdf17.4 kBAdobe PDF

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05 List of tables.pdf10.43 kBAdobe PDF

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06 List of figures.pdf39.32 kBAdobe PDF

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07 List of symbols.pdf35.2 kBAdobe PDF

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08 Chapter 01.pdf83.62 kBAdobe PDF

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09 Chapter 02.pdf188.32 kBAdobe PDF

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10 Chapter 03.pdf3.91 MBAdobe PDF

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11 Chapter 04.pdf81.23 kBAdobe PDF

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12 Chapter 05.pdf4.23 MBAdobe PDF

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13 Chapter 06.pdf10.69 MBAdobe PDF

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14 Chapter 07.pdf31.77 kBAdobe PDF

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01 Cover N thesis title.pdf18.56 kBAdobe PDF

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15 References N Appendix.pdf120.63 kBAdobe PDF

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