Mechanism of self-oscillations in a supersonic jet impact onto an obstacle. 2. Obstacle with no spike

被引：0
|
作者：
S. P. Kiselev
V. P. Kiselev
V. N. Zaikovskii
机构：
[1] Russian Academy of Sciences,Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch
来源：
Journal of Applied Mechanics and Technical Physics | 2014年 / 55卷
关键词：
overexpanded supersonic jet; obstacle; self-oscillations; shock wave;
D O I：
暂无
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学科分类号：
摘要：
Results of the numerical solution of the problem of impingement of an overexpanded supersonic jet onto an obstacle are reported. The mass-flow-rate mechanism of self-oscillations is revealed. This mechanism consists of periodic changes in the regimes of gas inflow and outflow from the separation region to the jet around this region. It is shown that the shock-wave structure of the impinging supersonic jet exerts a significant effect on the amplitude of self-oscillations.
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页码：742 / 749
页数：7
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