Fluid-structure interaction with the entropic lattice Boltzmann method

B. Dorschner, S. S. Chikatamarla, and I. V. Karlin
Phys. Rev. E 97, 023305 – Published 20 February 2018

Abstract

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.

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  • Received 6 October 2017

DOI:https://doi.org/10.1103/PhysRevE.97.023305

©2018 American Physical Society

Physics Subject Headings (PhySH)

Fluid DynamicsNonlinear Dynamics

Authors & Affiliations

B. Dorschner*, S. S. Chikatamarla, and I. V. Karlin

  • Aerothermochemistry and Combustion Systems Lab, Department of Mechanical and Process Engineering, ETH Zurich, CH-8092 Zurich, Switzerland

  • *benedikt.dorschner@lav.mavt.ethz.ch
  • chikatamarla@lav.mavt.ethz.ch
  • Corresponding author: karlin@lav.mavt.ethz.ch

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Issue

Vol. 97, Iss. 2 — February 2018

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