Fluid-structure interaction with the entropic lattice Boltzmann method

We propose a fluid-structure interaction (FSI) scheme using the entropic multi-relaxation time lattice Boltzmann (KBC) model for the fluid domain in combination with a nonlinear finite element solver for the structural part. We show the validity of the proposed scheme for various challenging setups...

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Bibliographic Details
Published in:Physical review. E 2018-02, Vol.97 (2-1), p.023305-023305, Article 023305
Main Authors: Dorschner, B, Chikatamarla, S S, Karlin, I V
Format: Article
Language:English
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Summary:We propose a fluid-structure interaction (FSI) scheme using the entropic multi-relaxation time lattice Boltzmann (KBC) model for the fluid domain in combination with a nonlinear finite element solver for the structural part. We show the validity of the proposed scheme for various challenging setups by comparison to literature data. Beyond validation, we extend the KBC model to multiphase flows and couple it with a finite element method (FEM) solver. Robustness and viability of the entropic multi-relaxation time model for complex FSI applications is shown by simulations of droplet impact on elastic superhydrophobic surfaces.
ISSN:2470-0045
2470-0053
DOI:10.1103/PhysRevE.97.023305