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用格子Boltzmann方法模拟高雷诺数下的热空腔黏性流

物理学报, 2001, 50(3): 422-427.
DOI: 10.7498/aps.50.422
CSTR: 32037.14.aps.50.422

SIMULATION OF THERMAL VISCOUS CAVITY FLOW IN HIGH REYNOLD NUMBER BY THE LATTICE BOLTZMANN METHOD

Acta Phys. Sin., 2001, 50(3): 422-427.
DOI: 10.7498/aps.50.422
CSTR: 32037.14.aps.50.422
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  • 摘要

    对13速六方格子Bhatnagar-Gross-Krook模型进行改进,适当地选取弛豫时间τ和k,使得热流体的切黏滞系数μ与热导系数λ只与内能有关,流体的Prandtl数可调.用该模型模拟了高雷诺数下的各种边界空腔流

     

    Abstract

    A modification to the 13-speed lattice Bhatnagar-Gross-Krook model is presented.The single relaxation time τ and the free parameter k are suitably chosen so that the transport coefficients become energy-dependent only and the Prandtl number is tunable.Simulations for various boundary cavities under high Reynold number are presented with the model.

     

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