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细长锥体有攻角绕流对称流态到非对称流态的结构稳定性研究
引用本文:张涵信,冉政.细长锥体有攻角绕流对称流态到非对称流态的结构稳定性研究[J].空气动力学学报,1997,15(1):20-26.
作者姓名:张涵信  冉政
作者单位:中国空气动力研究与发展中心!四川绵阳,621000
摘    要:从结构稳定性的思路出发,研究了圆锥体有攻角绕流对称流态到非对称流态的转变。借助结构稳定性理论,发现小攻角下对称流态是结构稳定的,但大攻角下对称流态是结构不稳定的。

关 键 词:锥体  绕流  非对称流态  拓扑分析  结构稳定性

On the Structural Stability of the Flows over Slenders at Angle of Attack
Zhang Hanxin,Ran zhen.On the Structural Stability of the Flows over Slenders at Angle of Attack[J].Acta Aerodynamica Sinica,1997,15(1):20-26.
Authors:Zhang Hanxin  Ran zhen
Abstract:Based on the theory of structural stability, this paper investigates the transition of the flows over slenders at angle of attack from symmetric state to the asymmetric state. The conclusion show that the symmetric flow is structural stability at low angle of attack. On the contrary, the symmetric flow is structural unstability at high angle of attack. The critical condition of this transition also be presented in this paper.
Keywords:flows over slenders  asymmetric flow  topological analysis  structural stability
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