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A Benchmark Case For Lattice Boltzmann: Turbulent Dipole-Wall Collision

Author

Listed:
  • JONAS LATT

    (Centre Universitaire Informatique, University of Geneva, Rue du General Dufour 24, 1211 Geneva, Switzerland)

  • BASTIEN CHOPARD

    (Centre Universitaire Informatique, University of Geneva, Rue du General Dufour 24, 1211 Geneva, Switzerland)

Abstract

A numerical experiment is presented that is taken from the recent literature. It has been devised as a benchmark case to test the quality of boundary conditions in numerical solvers for computational fluid dynamics. In this experiment, a two-dimensional system of two counter-rotating vortexes is brought into collision with a no-slip wall and rebounds from it. In the present paper, the benchmark is run with a lattice-Boltzmann numerical solver. Astonishingly accurate results are obtained with a straightforward boundary condition known under the name of bounce-back. This sample problem is also used to discuss techniques for the setup of an initial condition in the lattice Boltzmann method.

Suggested Citation

  • Jonas Latt & Bastien Chopard, 2007. "A Benchmark Case For Lattice Boltzmann: Turbulent Dipole-Wall Collision," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 18(04), pages 619-626.
    • Handle: RePEc:wsi:ijmpcx:v:18:y:2007:i:04:n:s0129183107010863
    DOI: 10.1142/S0129183107010863
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