摘要
分离流问题的研究在当前流体力学中占有十分重要的地位。它不仅具有重要的理论意义并且具有广泛的应用价值。本文着重评述三维分离流中的基本物理特性和它的流动结构。重点讨论了三维定常分离的两种模式及其判别准则;在三维分离流中应用奇点拓扑理论的定性分析;按照流动的物理特性对三维分离的分类;分离面的物理特性。最后简单介绍了目前在研究湍流边界层分离方面的进展。
The problem of flow separation is important in modern fluid mechanics because of its theoretical values and practical applications. This paper mainly reviews three dimensional separated flow structure and its fundamental behaviour in the physical aspects. Following problems are discussed in detail; two types of flow separation modes and separation criterion for 3D steady flows; qualitative analysis of 3D separated flow with topology theory; the classification of 3D separated flows according to physical characteristics) the physical behaviour of separated surface. Finally recent studies of turbulent boundary layer separation are also briefly reviewed.
出处
《力学进展》
EI
CSCD
北大核心
1989年第1期5-19,共15页
Advances in Mechanics
基金
国家教委博士点基金
关键词
分离流
分离流动
定常流分离
三维
separated flow
separation mode
3D-separation criterion
turbulent boundary layer separation
topology analysis
