Lattice Boltzmann method for moving boundaries

  • Authors:
  • Pierre Lallemand;Li-Shi Luo

  • Affiliations:
  • Laboratoire CNRS-ASCI, Bâtiment 506, Université Paris-Sud (Paris XI Orsay), 91405 Orsay Cedex, France;ICASE, MS 132C, NASA Langley Research Center, 3 West Reid Street, Building 1152, Hampton, VA

  • Venue:
  • Journal of Computational Physics
  • Year:
  • 2003

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Abstract

We propose a lattice Boltzmann method to treat moving boundary problems for solid objects moving in a fluid. The method is based on the simple bounce-back boundary scheme and interpolations. The proposed method is tested in two flows past an impulsively started cylinder moving in a channel in two dimensions: (a) the flow past an impulsively started cylinder moving in a transient Couette flow; and (b) the flow past an impulsively started cylinder moving in a channel flow at rest. We obtain satisfactory results and also verify the Galilean invariance of the lattice Boltzmann method.