大气边界层的室内模拟研究——夹卷层温度场结构分析

A Laboratory Simulation of Atmospheric Boundary Layer Analyses of Temperature Structure in the Entrainment Zone

利用室内水槽模拟大气对流边界层,并用多探头测量和光学方法测量分析夹卷层的夹卷过程和温度场结构。测量结果表明,夹卷层的温度场不同于各向同性湍流场,主要原因是夹卷层中含有一些大尺度的相干涡旋。

A water convection tank is used to simulate the atmospheric convective boundary layer, and the entrainment processes and temperature structure are analyzed with help of multi-probe temperature sensors and optics method. The results show that temperature structure in the entrainment zone differs from the structure of isotropic turbulence and contains a lots of large-scale coherent eddies.