AN ELASTIC-COLLISION SCHEME FOR LATTICE BOLTZMANN METHODS

J. G. Zhou ()
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J. G. Zhou: Department of Computing and Mathematics, Manchester Metropolitan University, Manchester M1 5GD, U.K.

International Journal of Modern Physics C (IJMPC), 2001, vol. 12, issue 03, 387-401

Abstract: An elastic-collision scheme is developed to achieve slip and semi-slip boundary conditions for lattice Boltzmann methods. Like the bounce-back scheme, the proposed scheme is efficient, robust and generally suitable for flows in arbitrary complex geometries. It involves an equivalent level of computation effort to the bounce-back scheme. The new scheme is verified by predicting wind-driven circulating flows in a dish-shaped basin and a flow in a strongly bent channel, showing good agreement with analytical solutions and experimental data. The capability of the scheme for simulating flows through multiple bodies has also been demonstrated.

Keywords: Elastic-Collision Scheme; Lattice Boltzmann Method; Shallow Water Equations; Slip/Semi-Slip Boundary Condition (search for similar items in EconPapers)
Date: 2001
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DOI: 10.1142/S0129183101001833

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