计算物理 ›› 2002, Vol. 19 ›› Issue (6): 483-487.

• 论文 • 上一篇    下一篇

双扩散自然对流的格子Boltzmann模拟

郭照立, 李青, 郑楚光   

  1. 华中科技大学煤燃烧国家重点实验室, 湖北 武汉 430074
  • 收稿日期:2001-04-04 修回日期:2001-10-24 出版日期:2002-11-25 发布日期:2002-11-25
  • 作者简介:郭照立(1972-),男,河南,博士后,从事计算流体力学方面的研究.
  • 基金资助:
    国家重点基础研究专项经费(G1999022207);国家自然科学基金(50006003)资助项目

LATTICE BOLTZMANN SIMULATION OF DOUBLE DIFFUSIVE NATURAL CONVECTION

GUO Zhao-li, LI Qing, ZHENG Chu-guang   

  1. National Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2001-04-04 Revised:2001-10-24 Online:2002-11-25 Published:2002-11-25

摘要: 建立了一个模拟双扩散自然对流系统的格子Boltzmann模型,用此模型对受温度和浓度梯度驱动的方腔流动进行了模拟,研究了浓度Rayleigh数对传热传质的影响,并与其它文献的结果进行了比较.

关键词: 格子Boltzmann方法, 双扩散对流, 传热传质

Abstract: A lattice Boltzmann model is proposed for the double diffusive natural convection system.The flow in a square cavity driven by a temperature gradient and a concentration gradient is then simulated using the present model.The influence of the concentration field on the flow patterns is investigated,and some quantitative comparisons with other studies are made.It is shown that the present LB model can predict the flow characteristics correctly.

Key words: lattice Boltzmann method, double diffusive natural convection, heat and mass transfer

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