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

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Published in Mathematics and Computers in Simulation. 2006, vol. 72, no. 2-6, p. 169-172
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 computationArtificial boundary conditionLattice Boltzmann methodNested grid technique
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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. https://archive-ouverte.unige.ch/unige:36380

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Deposited on : 2014-05-06

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