Commun. Comput. Phys.,
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Volume 4.

An Efficient Parallel/Unstructured-Multigrid Implicit Method for Simulating 3D Fluid-Structure Interaction

X. Lv 1, Y. Zhao 1*, X. Y. Huang 1, G. H. Xia 1, X. H. Su 1

1 School of Mechanical and Aerospace Engineering, College of Engineering, Nanyang Technological University, Singapore 639798.

Received 16 April 2007; Accepted (in revised version) 16 January 2008
Available online 18 March 2008


A finite volume (FV) method for simulating 3D Fluid-Structure Interaction (FSI) is presented in this paper. The fluid flow is simulated using a parallel unstructured multigrid preconditioned implicit compressible solver, whist a 3D matrix-free implicit unstructured multigrid finite volume solver is employed for the structural dynamics. The two modules are then coupled using a so-called immersed membrane method (IMM). Large-Eddy Simulation (LES) is employed to predict turbulence. Results from several moving boundary and FSI problems are presented to validate proposed methods and demonstrate their efficiency.

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PACS: 47.11-j
Key words: Finite volume method, moving boundary, fluid-structure interaction, unstructured multigrid, computational structural mechanics, immersed membrane method, large-Eddy simulation.

*Corresponding author.
Email: (X. Lv), (Y. Zhao)

The Global Science Journal