用格子Boltzmann方法模拟正压大气运动

doi:10.7523/j.issn.2095-6134.2003.2.006

中国科学院大学学报 ›› 2003, Vol. 20 ›› Issue (2): 168-171.DOI: 10.7523/j.issn.2095-6134.2003.2.006

用格子Boltzmann方法模拟正压大气运动

刘峰, 胡非

中国科学院大气物理研究所, LAPC, 北京 100029

收稿日期:2002-04-15 修回日期:2002-07-04 发布日期: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

Liu Feng, Hu Fei

LAPC, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China

Received:2002-04-15 Revised:2002-07-04 Published:2003-03-10

摘要/Abstract

摘要：

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

Abstract:

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

中图分类号:

P433
O35

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.

Liu Feng, Hu Fei. Lattice Boltzmann Method to Simulate Barotropic Atmosphere[J]. , 2003, 20(2): 168-171.

用格子Boltzmann方法模拟正压大气运动

Lattice Boltzmann Method to Simulate Barotropic Atmosphere

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