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Grid refinement for lattice-BGK models. (English) Zbl 0917.76061
We propose a local second-order grid refinement scheme for the lattice-BGK model. The refinement scheme and a boundary-fitting scheme for complicated geometries are applied to simulate a benchmark problem of flow past a cylinder in a channel at small and moderate Reynolds numbers. $$\copyright$$ Academic Press.

MSC:
 76M25 Other numerical methods (fluid mechanics) (MSC2010) 76P05 Rarefied gas flows, Boltzmann equation in fluid mechanics 82B20 Lattice systems (Ising, dimer, Potts, etc.) and systems on graphs arising in equilibrium statistical mechanics
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