计算物理 ›› 1992, Vol. 9 ›› Issue (4): 371-372.

• 论文 • 上一篇    下一篇

实数型格子气模型及方柱绕流的模拟

施卫平, 胡守信   

  1. 吉林大学力学教研室, 吉林 130023
  • 收稿日期:1992-01-02 出版日期:1992-12-25 发布日期:1992-12-25
  • 基金资助:
    国家自然科学基金

REAL NUMBER LATTICE GAS SIMULATION OF FLUID FLOW AROUND A SQUARE CYLINDER

Shi Weiping, Hu Shouxin   

  1. Jilin University, 130023
  • Received:1992-01-02 Online:1992-12-25 Published:1992-12-25

摘要: 在4Bits的HPP格子气模型基础上提出了用实数表示节点每一速度方向的粒产密度的实数型HPP模型,建立了粒子碰撞的运算关系式(代替碰撞规则),用此方法对方柱绕流问题进行了计算并介绍了边界条件的处理方法,计算结果较好地反映了真实流动特性。

Abstract: We discuss a alternative technique to the lattice gas automata for the study of viscous flows. It is shown that the lattice gas automata with real number population deriving from the HPP model being free from microscopic fluctuations. provides a new appealing tool to simulate viscous flows. Numerical results pertaining to a two-dimensional flow past a square cylinder are reported and compared with experimental data available in the literature.