4.5 Article Proceedings Paper

Numerical methods for immersed FSI with thin-walled structures

Journal

COMPUTERS & FLUIDS
Volume 179, Issue -, Pages 746-765

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compfluid.2018.05.024

Keywords

Fluid-structure interaction; Incompressible fluid; Immersed thin-walled structure; Unfitted meshes; Fitted meshes; Fictitious domain method; XFEM method; Nitsche method; Arbitrary Lagrangian-Eulerian method

Funding

  1. project MIVANA
  2. French government

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The numerical simulation of a thin-walled structure immersed in an incompressible fluid can be addressed by various methods. In this paper, three of them are considered: the Arbitrary Lagrangian-Eulerian (ALE) method, the Fictitious Domain/Lagrange multipliers (FD) method and the Nitsche-XFEM method. Taking ALE as a reference, the advantages and limitations of FD and Nitsche-XFEM are carefully discussed on three benchmark test cases which have been chosen to be representative of typical difficulties encountered in valves or living cells simulations. (C) 2018 Elsevier Ltd. All rights reserved.

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