摘要
本文通过数值模拟和拓扑分析，研究了以等角速旋转的钝惟有攻角绕流时垂直于物面的截面流线性状，揭示了顺流运动壁和逆流运动壁情况下截面流态的拓扑结构，定性说明了三维非定常分离的一些主要特征。
In this paper, the flows around a blunt cone with spin are simulated numerically, and the flow separation patterns are investigated. By flowfield visualization and qualitative analysis, the topological structure of the sectional flow patterns on the wall moving along or reversal to the out flow are revealed. Although it is quite difference from the cases without spin, but they have something to do with each other. In addition, the relations between a moving wall and a stationary wall, as well as the relations between the topological structure and the flow parameters on the body surface are presented.
出处
《空气动力学学报》
CSCD
北大核心
2000年第z1期1-9,共9页
Acta Aerodynamica Sinica
基金
国家自然科学基金
关键词
三维非定常分离
角速度
拓扑分析
数值模拟
three dimensional flow separation
angler velocity
topological analysis
numerical simulation
