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A multi-resolution SPH method for fluid-structure interactions

delete2021-03-01
delete144
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AI
张
张弛 (Chi Zhang)
M
Massoud Rezavand
X
Xiangyu Hu *
DOI:10.1016/j.jcp.2020.110028delete
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摘要

摘要

En 中文
In this paper, we present a multi resolution smoothed particle hydrodynamics (SPH) method for modeling fluid-structure interaction (FSI) problems. By introducing different smoothing lengths and time steps, the spatial-temporal discretization is applied with different resolutions for fluid and structure. To ensure momentum conservation at the fluid-structure coupling, a position-based Verlet time integration scheme is introduced. Furthermore, the time-averaged velocity and acceleration of solid particles are introduced to enhance force matching in the fluid and solid equations. A set of numerical examples including several bio-mechanical problems are considered to demonstrate the efficiency, accuracy and robustness of the present method. An open-source code for all the examples is also provided. (C) 2020 Elsevier Inc. All rights reserved.
Keyword:
Fluid-elastic structure interaction
Multiple time steps
Multi-resolution
Smoothed particle hydrodynamics
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期刊

Journal of Computational Physics 封面图
Journal of Computational Physics
IF:
3.8
论文数:
1.6W
被引数:
7.4W

机构

T
Technical University of Munich
学者数:
5.2W
论文数: 3.9W
被引数: 6.2W
引用论文

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Fluid-structure interaction involving large deformations: 3D simulations and applications to biological systems
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errTian, Fang-Bao; Dai, Hu; Luo, Haoxiang; Doyle, James F.; Rousseau, Bernard
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