收稿日期: 2002-04-15
修回日期: 2002-07-04
网络出版日期: 2003-03-10
基金资助
中国科学院创新工程项目KZCX2-204资助
Lattice Boltzmann Method to Simulate Barotropic Atmosphere
Received date: 2002-04-15
Revised date: 2002-07-04
Online published: 2003-03-10
用一种新近发展起来的、基于统计力学的计算流体力学方法--格子Boltzmann方法模拟了正压大气的运动.在一般格子Boltzmann的基础上,加入了科氏力和重力,用流体柱高度代替一般模型中的密度,避免了不可压缩流动计算的困难,并用这一改进的模型成功地模拟了地转风和气旋的形成过程.
关键词： 格子Boltzmann方法; 正压大气; 地转风; 气旋
刘峰 , 胡非 . 用格子Boltzmann方法模拟正压大气运动[J]. 中国科学院大学学报, 2003 , 20(2) : 168 -171 . DOI: 10.7523/j.issn.2095-6134.2003.2.006
A recently developed CFD method, lattice Boltzmann equation (LBE) model method is applied to simulate the movement of barotropic atmosphere. Different from conventional LBE models, Coriolis force and the effect of gravity are added into this model, and the height of fluid is introduced to replace the density term, which avoids the difficulties related to the computation of incompressible fluid. The formation of geostrophic wind and cyclone is simulated successfully.
Key words： lattice Boltzmann model; barostropic atmosphere; geostrophic wind; cyclone
[1] S Chapman,T G Cowing. The Mathematical Theory of Non-uniform Gases. Cambridge:Cambridge Univ Press, 1939
[2] 吴其芬,陈伟芳.高温稀薄气体热化学非平衡流动的DSMC方法.长沙:国防科技大学出版社,1999
[3] 应纯同.气体输运理论及应用,北京:清华大学出版社,1990
[4] BhatnagerP L,GrossE P, Krook M. Phys Rev,1954,94:511~524
[5] Shiyi Chen,Gary D Doolen.Annu Rev Fluid Mech, 1998,30:329~364
[6] Xiaowen Shan.Phys Rev. 1997,E55:2780~2788
[7] H Chen, S Succi, S Orszag.Phys Rev, 1999,E 59:2527
[8] 吕美仲,彭永清.动力气象学教程.北京:气象出版社,1990
[9] 苏铭德,徐昆,M Ghidaoui. 用BGK格式计算不可压缩流场.力学学报,2000,32(6):641~650
/
| 〈 |
|
〉 |
