用格子Boltzmann方法模拟正压大气运动  

Lattice Boltzmann Method to Simulate Barotropic Atmosphere

作　　者：刘峰[1] 胡非[1] 

机构地区：[1]中国科学院大气物理研究所,lapc北京100029

出　　处：《中国科学院研究生院学报》2003年第2期168-171,共4页Journal of the Graduate School of the Chinese Academy of Sciences

基　　金：中国科学院创新工程项目KZCX2 2 0 4资助

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。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.

关 键 词：格子BOLTZMANN方法 正压大气 地转风 气旋 

分 类 号：P433[天文地球—大气科学及气象学] O35[理学—流体力学]