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所属单位：航空学院

发表刊物：INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS

关键字：lattice Boltzmann method mesh-free radial basis function semi-Lagrangian

摘要：In this paper, a local radial basis function-based semi-Lagrangian lattice Boltzmann method (RBF-SL-LBM) is proposed. This is a mesh-free method that can be used for the simulation of incompressible flows. In this method, the collision step is performed locally, which is the same as in the standard LBM. In the meanwhile, the steaming step is solved in a semi-Lagrangian framework. The distribution functions at the departure points, which may be not the grid points in general, are computed by the local radial basis function interpolation. Several numerical tests are conducted to validate the present method, including the lid-driven cavity flow, the steady and unsteady flow past a circular cylinder, and the flow past an NACA0012 airfoil. The present results are in good agreement with those published in the previous literature, which demonstrates the capability of RBF-SL-LBM for the simulation of incompressible flows.

ISSN号：0271-2091

是否译文：否

发表时间：2019-10-10

合写作者：Lin, Xingjian,Zhang, Tongwei

通讯作者：吴杰