The Application of Turbulent Kinetic Energy Closure Scheme on Mesoscale Model
湍流动能闭合方法在中尺度模式中的应用

Turbulent kinetic energy (TKE) closure scheme was developed to simulate atmospheric boundary layer (ABL) in recent years In this paper, TKE closure scheme was simplified to be used only in ABL Thus it became more suitable to be used in mesoscale numerical simulation because of the less computation A one-dimensional model verified by Wangara observed data showed that the method of simplification not only kept the precision of simulation in ABL but reduced the computer time The method was applied to three-dimensional mesoscale simulation of airflow over bell-shape terrain The distribution of turbulent kinetic energy was successful to display, and it was discussed that activity of turbulence affected the intensity and area of lee zone