摘要
在大尺度的旋转流场中 ,由于存在哥氏力 ,使流体的流动出现了一系列复杂的动力学现象 .在原格子Boltzmann模型研究的基础上 ,引入了哥氏力效应 ,发展了一个旋转流场中的格子Boltzmann模型 .从该模型出发可导出地球流体力学方程 ,用这一模型对理想边界条件下的北半球大气环流进行了数值计算 .数值结果很好地再现了大尺度地转流的流动特征 .
In large scale rotational flow field,there appear a series of complex dynamic phenomena due to the Coriolis force effect. Based on previous works,the lattice Boltzmann equation model in rotational flow field is developed by introducing the Coriolis force. Geophysics hydrodynamic equations can be derived from this model. Numerical computation is to simulate on the atmospheric circulation of the Northern Hemisphere with this model under ideal boundary conditions. The numerical results show the flow behavior of large scale geostrophic current,thus verifying the applicability of the model in theory and experiment. [
出处
《地球物理学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第2期170-175,共6页
Chinese Journal of Geophysics
基金
国家重点基础研究发展项目 (KZCX2 2 0 3)
国家重点实验室基金 ( 4 982 30 0 2
7 2 0 0 0 5 3
4 2 0 0 0 6 0 )
