摘要
本文采用k—ε两方程湍流计算工程模式和Sigma坐标系、迎风分裂隐式格式,数值模拟了在地转运动和浮力、热力效应下两维起伏地形上的过山气流,获得了复杂大气流动的风速、风切变、位温和湍动能的分布特征。
The Turbulence model of two differential equations (κ- ε) , Sigma coordinate frames and upwind splitting implicit differnece schemes are adopted in this paper. Under geotrophic motion, buoyant and thermal effects, the wind velocities, wind shears, potential temperature and turbulent kinetic energy of complicated airflow fields on 2-dimensional wavy topography are computed.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
1993年第2期135-142,共8页
Chinese Journal of Hydrodynamics
关键词
湍流
气流
隐式格式
过山气流
turbulence, airflow, κ - ε model, implicil scheme.
