Two-Parameter Thermal Lattice BGK Model with a Controllable Prandtl Number

被引：34

作者：

Chen Y. ^{[1
]}

Ohashi H. ^{[1
]}

Akiyama M. ^{[1
]}

机构：

[1] Dept. of Quant. Eng. and Syst. Sci., Faculty of Engineering, University of Tokyo, Bunkyo-ku, Tokyo 113

来源：

Journal of Scientific Computing | 1997年 / 12卷 / 2期

关键词：

BGK model; Convective heat transfer; Lattice gas; Prandtl number;

D O I：

10.1023/A:1025621832215

中图分类号：

学科分类号：

摘要：

In this paper, two time relaxation parameters are introduce to a thermal lattice BGK model to make its Prandtl number controllable. The dependency of the Prandtl number on the two parameters is derived. Numerical measurement of the transport coefficients is used to demonstrate the validity of the method. Furthermore, two examples of convective heat transfer are calculated, with one to show the effectiveness, and the other to show the breakdown of the two-parameter formulation under different conditions.

引用

页码：169 / 185

页数：16

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