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偏格子中的格子Boltzmann方程

闫广武, 胡守信, 金希卓   

  1. 吉林大学数学科学学院, 长春 130012
  • 收稿日期:2001-10-25 修回日期:1900-01-01 出版日期:2002-01-26 发布日期:2002-01-26
  • 通讯作者: 闫广武

A Lattice Boltzmann Equation on the Oblique Grid Mesh

YAN Guang-wu, HU Shou-xin, JIN Xi-zhuo   

  1. College of Mathematics, Jilin University, Changchun 130012, P.R.China
  • Received:2001-10-25 Revised:1900-01-01 Online:2002-01-26 Published:2002-01-26
  • Contact: YAN Guang-wu

摘要: 给出偏格子的格子Boltzmann模型. 应用Chapman-Enskog展开和多重尺度技术, 通过 选择平衡态分布函数的高阶矩和偏张量的形式, 得到偏网格上的Euler方程.

关键词: 格子Boltzmann方法, Euler方程, 偏格子, 三能级模型

Abstract: A lattice Boltzmann model of an oblique grid mesh is proposed in this paper. With Chapman-Enskog expansion and multiscale technique, the Euler equations on the oblique grid mesh is obtained by means of selecting the high order moments of equilibrium distribution function and the oblique tensors of the coefficients.

Key words: lattice Boltzmann equation, Euler equation, oblique lattice, three-energy level model

中图分类号: 

  • O354