A coupled lattice BGK model for the Boussinesq equations

被引：530

作者：

Guo, ZL ^{[1
]}

Shi, BC

Zheng, CG

机构：

[1] Huazhong Univ Sci & Technol, Natl Lab Coal Combust, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Dept Math, Wuhan 430074, Peoples R China

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS | 2002年 / 39卷 / 04期

关键词：

lattice BGK method; porous plate problem; natural convection;

D O I：

10.1002/fld.337

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

In this paper, a thermal lattice BGK model is developed for the Boussinesq incompressible fluids. The basic idea is to solve the velocity field and the temperature field using two independent lattice BGK equations. respectively, and then combine them into one coupled model for the whole system. The porous plate problem and the two-dimensional natural convection flow in a square cavity with Pr=0.71 and various of Rayleigh numbers are simulated using the model. The numerical results are found to be in good agreement with the analytical solutions or those of previous studies. Copyright (C) 2002 John Wiley Sons. Ltd.

引用

页码：325 / 342

页数：18

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