计算物理 ›› 1998, Vol. 15 ›› Issue (4): 439-444.

• 论文 • 上一篇    下一篇

热动力学格子Boltzmann模型

熊盛武1, 李元香1, 康立山1, 陈炬桦1, 阮剑2   

  1. 1. 武汉大学软件工程国家重点实验室 430072;
    2. 华中理工大学煤燃烧国家重点实验室
  • 收稿日期:1997-06-16 修回日期:1998-04-22 出版日期:1998-07-25 发布日期:1998-07-25
  • 作者简介:熊盛武,男,30,讲师,博士,武汉大学软件工程国家重点实验室
  • 基金资助:
    国家自然科学基金和863计划资助

A THERMODYNAMICS LATTICE-BOLTZMANN METHOD MODEL

Xiong Shengwu1, Li Yuanxiang1, Kang Lishan1, Chen Juhua1, Ruan Jian2   

  1. State Key Lab of Software Engineering, Wuhan University, 430072
  • Received:1997-06-16 Revised:1998-04-22 Online:1998-07-25 Published:1998-07-25

摘要: 提出了一类热动力学格子Boltzmann模型,其分布函数中含有内能项与高阶速度项。以三个HPP模型为基础,建立了一个三迭加HPP格子Boltzmann模型,并给出其局部平衡分布函数。设计了热动力学现象模拟中的外力处理方法和温度边界条件处理方法,用该模型成功地模拟了Benard热对流现象。

关键词: 格子Boltzmann模型, 并行计算, BGK模型, Benard对流

Abstract: A thermodynamic lattice Boltzmann model whose equilibrium distribution function include high order terms of velocity and internal energy terms is presented, and a new kind of implement of gravity and temperature boundary is also proposed by which thermodynamics phenomenon permits to be simulated. Based on the HPP model, a three-overlapped HPP lattice Boltzmann model is introduced. The Benard pattern of thermal convection phenomenon has been simulated successfully by using this model on SUN workstation computer.

Key words: lattice Boltzmann model, parallel computing, BGK model, Benard convection

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