湍流的本质及湍流方程的封闭  

Nature on and Closure Method of Turbulence

作　　者：吴峰[1] 

机构地区：[1]中国科学技术大学力学和机械工程系,合肥230026

出　　处：《中国科学技术大学学报》2002年第6期754-756,共3页JUSTC

基　　金：国家自然科学基金 (10 0 72 0 6 0 )资助项目

摘　　要：By use of the concepts of nonstandard analysis turbulent fields are thought of as the phenomena having hierarchical structures. There are two kinds of flow fields of different levels in turbulence. And turbulence is still taken as continuous. On the basis of these ideas the fundamental equations of turbulences are obtained. Then a closure method is given too and seems to be precise.By use of the concepts of nonstandard analysis turbulent fields are thought of as the phenomena having hierarchical structures. There are two kinds of flow fields of different levels in turbulence. And turbulence is still taken as continuous. On the basis of these ideas the fundamental equations of turbulences are obtained. Then a closure method is given too and seems to be precise.

关 键 词：湍流 湍流方程 层次结构 单子流场 相近假设 测量不确定性 湍流场 

分 类 号：O357.5[理学—流体力学]