湍流相干结构机理研究（Ⅰ）──光滑壁边界层相干结构的物理模型  

On the Mechanism of Turbulent Coherent Structure(Ⅰ)-The Physical Model of the Coherent Structure for the Smooth Boundary Layer

作　　者：蔡树棠[1] 刘宇陆[1] 

机构地区：[1]上海市应用数学和力学研究所,上海大学

出　　处：《应用数学和力学》1995年第4期301-305,共5页Applied Mathematics and Mechanics

基　　金：国家自然科学基金

摘　　要：本文主要讨论了光滑壁边界层相干结构的特性，建立了这种相干结构的物理模型，从理论上得到慢条宽度、猝发时间等物理量与动量厚度雷诺数的关系，其结果与实验结果￣［３’４’５’７］是相吻台的。In this paper,based on the discussion of properties of the turbulent coherent structure for smooth boundary layer,a physical model has been established.The width of slowly-moving streak line and bursting time of coherent structure exp-ressed by momentum thickness Reynolds number of boundary layer have been obtained, which are in agreement with the experimental data￣ [3,4,5,7]

关 键 词：湍流 相干结构 慢条宽度 边界层 剪切流动 

分 类 号：O357.52[理学—流体力学]