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凹面腔内的激波会聚冷态实验

曾昊 何立明 荣康 张强

曾昊, 何立明, 荣康, 张强. 凹面腔内的激波会聚冷态实验[J]. 航空动力学报, 2012, 27(12): 2655-2659.
引用本文: 曾昊, 何立明, 荣康, 张强. 凹面腔内的激波会聚冷态实验[J]. 航空动力学报, 2012, 27(12): 2655-2659.
ZENG Hao, HE Li-ming, RONG Kang, ZHANG Qiang. Experiment on shock wave focus in resonator[J]. Journal of Aerospace Power, 2012, 27(12): 2655-2659.
Citation: ZENG Hao, HE Li-ming, RONG Kang, ZHANG Qiang. Experiment on shock wave focus in resonator[J]. Journal of Aerospace Power, 2012, 27(12): 2655-2659.

凹面腔内的激波会聚冷态实验

Experiment on shock wave focus in resonator

  • 摘要: 为研究两级脉冲爆震发动机中激波聚焦起爆技术,研制了激波会聚起爆原理样机,建立了整套实验系统.利用三维激波会聚起爆原理样机,开展了导流角度、气流出口面积、尾喷管扩张角、凹面腔与射流入口间距离等对凹面腔内气动振荡频率和压力影响的冷态实验研究.结果表明:导流角增大,气动振荡频率增大;气流出口面积减小,气动振荡频率增大,凹面腔底部动态压力脉动幅值增大;喷管扩张角度增大,气动振荡频率数目增多;随着凹面腔与环形射流入口间的距离L增长,气动振荡频率降低,凹面腔底部动态压力脉动幅值降低.

     

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出版历程
  • 收稿日期:  2011-09-25
  • 刊出日期:  2012-12-28

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