计算物理 ›› 2001, Vol. 18 ›› Issue (2): 181-184.

• 论文 • 上一篇    下一篇

基于区域分裂的非均匀Lattice Boltzmann方法

郭照立1, 施保昌2, 王能超2   

  1. 1. 华中科技大学计算机科学系, 湖北 武汉 430074;
    2. 华中科技大学并行计算研究所, 湖北 武汉 430074
  • 收稿日期:1999-07-23 修回日期:2000-02-25 出版日期:2001-03-25 发布日期:2001-03-25
  • 作者简介:郭照立(1972-),男,河南滑县,博士,从事LB方法,快速算法及演化算法方面的研究,华中科技大学煤燃烧国家重点实验室.
  • 基金资助:
    国家自然科学基金(60073044)及国家重大基础研究规划(G1999022207)资助项目

A NONUNIFORM LATTICE BOLTZMANN METHOD BASED ON DOMAIN DECOMPOSITION

GUO Zhao-li1, SHI Bao-chang2, WANG Neng-chao2   

  1. 1. Department of Computer Science, Huazhong University of Science and Technology, Wuhan 430074, P R China;
    2. Parallel Computing Institute, Huazhong Universit of Science and Technology, Wuhan 43007
  • Received:1999-07-23 Revised:2000-02-25 Online:2001-03-25 Published:2001-03-25

摘要: 基于区域分裂技术,设计了一种使用非均匀网格的Lattice Boltzmann(LB)模型.其基本思想是:将流场分解为若干个规则的子区域,在每个子区域使用均匀网格上的LB模型求解,子区域的边界条件利用插值方法决定.用该模型对二维圆柱绕流问题进行了模拟,并与其它方法的结果作了比较.

关键词: Lattice Boltzmann方法, 非均匀网格, 区域分裂

Abstract: A lattice Boltzmann model (LBM) with nonuniform mesh is proposed based on domain decomposition technique.The basic idea is to divide the flow domain into some regular subdomains,and then perform simulations on each subdomain using LBM with uniform mesh.The values on the boundaries of the subdomains are determined by interpolation.The 2-D flow around a cylinder is simulated using the model,the results are also compared with those of other methods.

Key words: lattice Boltzmann method, nonuniform mesh, domain decomposition

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