Parallel-multigrid computation of prosthetic heart valves under physiological conditions using an immersed object method with overlapping grids

This thesis presents the development of a high performance computational flow solver for numerical simulation of blood flows in prosthetic heart valves under physiological conditions and blood-leaflet interaction. A novel and efficient immersed object method (IOM) with overlapping grids (OG) incorpo...

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Main Author: Tai, Chin Hoe
Other Authors: Liew, Kim Meow
Format: Theses and Dissertations
Published: 2008
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Online Access:http://hdl.handle.net/10356/6426
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-64262023-03-11T16:59:40Z Parallel-multigrid computation of prosthetic heart valves under physiological conditions using an immersed object method with overlapping grids Tai, Chin Hoe Liew, Kim Meow School of Mechanical and Aerospace Engineering Zhao, Yong DRNTU::Engineering::Bioengineering This thesis presents the development of a high performance computational flow solver for numerical simulation of blood flows in prosthetic heart valves under physiological conditions and blood-leaflet interaction. A novel and efficient immersed object method (IOM) with overlapping grids (OG) incorporating the parallel-multigrid (MG) method is proposed in the present work. The three-dimensional finite-volume Navier-Stokes solver on unstructured tetrahedral grids using artificial compressibility approach and a higher-resolution upwind characteristics-based scheme is extended to implement the proposed numerical methods. Both unsteady flow and fluid-structure interaction are calculated with a matrix-free implicit dual time-stepping scheme. Doctor of Philosophy (MAE) 2008-09-17T11:14:40Z 2008-09-17T11:14:40Z 2004 2004 Thesis http://hdl.handle.net/10356/6426 Nanyang Technological University application/pdf application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
topic DRNTU::Engineering::Bioengineering
spellingShingle DRNTU::Engineering::Bioengineering
Tai, Chin Hoe
Parallel-multigrid computation of prosthetic heart valves under physiological conditions using an immersed object method with overlapping grids
description This thesis presents the development of a high performance computational flow solver for numerical simulation of blood flows in prosthetic heart valves under physiological conditions and blood-leaflet interaction. A novel and efficient immersed object method (IOM) with overlapping grids (OG) incorporating the parallel-multigrid (MG) method is proposed in the present work. The three-dimensional finite-volume Navier-Stokes solver on unstructured tetrahedral grids using artificial compressibility approach and a higher-resolution upwind characteristics-based scheme is extended to implement the proposed numerical methods. Both unsteady flow and fluid-structure interaction are calculated with a matrix-free implicit dual time-stepping scheme.
author2 Liew, Kim Meow
author_facet Liew, Kim Meow
Tai, Chin Hoe
format Theses and Dissertations
author Tai, Chin Hoe
author_sort Tai, Chin Hoe
title Parallel-multigrid computation of prosthetic heart valves under physiological conditions using an immersed object method with overlapping grids
title_short Parallel-multigrid computation of prosthetic heart valves under physiological conditions using an immersed object method with overlapping grids
title_full Parallel-multigrid computation of prosthetic heart valves under physiological conditions using an immersed object method with overlapping grids
title_fullStr Parallel-multigrid computation of prosthetic heart valves under physiological conditions using an immersed object method with overlapping grids
title_full_unstemmed Parallel-multigrid computation of prosthetic heart valves under physiological conditions using an immersed object method with overlapping grids
title_sort parallel-multigrid computation of prosthetic heart valves under physiological conditions using an immersed object method with overlapping grids
publishDate 2008
url http://hdl.handle.net/10356/6426
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