Generalized lattice Boltzmann method with multirange pseudopotential


Sbragaglia, M. and Benzi, R. and Biferale, L. and Succi, S. and Succi, S. and Sugiyama, K. and Toschi, F. (2007) Generalized lattice Boltzmann method with multirange pseudopotential. Physical Review E: Statistical, nonlinear, and soft matter physics, 75 (2). 026702. ISSN 1539-3755

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Abstract:The physical behavior of a class of mesoscopic models for multiphase flows is analyzed in details near interfaces. In particular, an extended pseudopotential method is developed, which permits to tune the equation of state and surface tension independently of each other. The spurious velocity contributions of this extended model are shown to vanish in the limit of high grid refinement and/or high order isotropy. Higher order schemes to implement self-consistent forcings are rigorously computed for 2d and 3d models. The extended scenario developed in this work clarifies the theoretical foundations of the Shan-Chen methodology for the lattice Boltzmann method and enhances its applicability and flexibility to the simulation of multiphase flows to density ratios up to O(100).
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Copyright:© 2007 The American Physical Society
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Metis ID: 244773