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Scientific article
English

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

Published inMathematics and computers in simulation, vol. 72, no. 2-6, p. 169-172
Publication date2006
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.

Keywords
  • Drag force computation
  • Artificial boundary condition
  • Lattice Boltzmann method
  • Nested grid technique
Citation (ISO format)
LATT, Jonas et al. Simulating an exterior domain for drag force computations in the lattice Boltzmann method. In: Mathematics and computers in simulation, 2006, vol. 72, n° 2-6, p. 169–172. doi: 10.1016/j.matcom.2006.05.026
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ISSN of the journal0378-4754
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