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Simulating an exterior domain for drag force computations in the lattice Boltzmann method

Author

Listed:
  • Latt, Jonas
  • Grillet, Yannick
  • Chopard, Bastien
  • Wittwer, Peter

Abstract

The simulation of a stationary fluid flow past an obstacle by means of a lattice Boltzmann method is discussed. The problem of finding appropriate boundary conditions on the boundaries of the truncated numerical domain is addressed by a method recently discussed in the literature, based on a truncated expansion of the solution. The iterative process at the heart of this method is coupled with the iteration steps of a progressive grid refinement technique that allows a rapid convergence towards a well resolved stationary state. It is shown that this combination results in a highly efficient numerical tool which can speed up the resolution process in a substantial manner.

Suggested Citation

  • Latt, Jonas & Grillet, Yannick & Chopard, Bastien & Wittwer, Peter, 2006. "Simulating an exterior domain for drag force computations in the lattice Boltzmann method," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 72(2), pages 169-172.
    • Handle: RePEc:eee:matcom:v:72:y:2006:i:2:p:169-172
    DOI: 10.1016/j.matcom.2006.05.026
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