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Derivation of the lattice Boltzmann method by means of the discrete ordinate method for the Boltzmann equation

Journal Article · · Journal of Computational Physics
 [1]
  1. Institute of Space and Astronautical Sciences, Sagamihara, Kanagawa (Japan)
In this note, we show that the lattice Boltzmann BGK method in common use can be derived from the Boltzmann equation itself. According to the present derivation, it is apparent that the equation thus derived can be reduced to the Navier-Stokes equation at a limit of small Knudsen number since the equation thus derived is the Boltzmann equation itself. Hence the present derivation method gives us a simple and flexible recipe to construct the lattice Boltzmann method, and makes it easy to construct an extended lattice Boltzmann method in various ways. 15 refs., 1 fig.
OSTI ID:
478414
Journal Information:
Journal of Computational Physics, Journal Name: Journal of Computational Physics Journal Issue: 1 Vol. 131; ISSN JCTPAH; ISSN 0021-9991
Country of Publication:
United States
Language:
English

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