A three dimensional immersed smoothed finite element method (3D IS-FEM) for fluid–structure interaction problems
Author(s)
Zhang, Zhi-Qian; Liu, G. R.; Khoo, Boo Cheong
DownloadKhoo_A three dimensional.pdf (2.572Mb)
PUBLISHER_POLICY
Publisher Policy
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Terms of use
Metadata
Show full item recordAbstract
A three-dimensional immersed smoothed finite element method (3D IS-FEM) using four-node tetrahedral element is proposed to solve 3D fluid–structure interaction (FSI) problems. The 3D IS-FEM is able to determine accurately the physical deformation of the nonlinear solids placed within the incompressible viscous fluid governed by Navier-Stokes equations. The method employs the semi-implicit characteristic-based split scheme to solve the fluid flows and smoothed finite element methods to calculate the transient dynamics responses of the nonlinear solids based on explicit time integration. To impose the FSI conditions, a novel, effective and sufficiently general technique via simple linear interpolation is presented based on Lagrangian fictitious fluid meshes coinciding with the moving and deforming solid meshes. In the comparisons to the referenced works including experiments, it is clear that the proposed 3D IS-FEM ensures stability of the scheme with the second order spatial convergence property; and the IS-FEM is fairly independent of a wide range of mesh size ratio.
Date issued
2012-04Department
Massachusetts Institute of Technology. Department of Aeronautics and AstronauticsJournal
Computational Mechanics
Publisher
Springer-Verlag
Citation
Zhang, Zhi-Qian, G. R. Liu, and Boo Cheong Khoo. “A Three Dimensional Immersed Smoothed Finite Element Method (3D IS-FEM) for Fluid–structure Interaction Problems.” Comput Mech 51, no. 2 (February 2013): 129–150.
Version: Author's final manuscript
ISSN
0178-7675
1432-0924