本文基于壁面动态压力传感器,研究了空腔流激振荡特性。在此基础上,设计了四种被动控制方法来抑制空腔流激振荡,即在空腔来流安装圆柱、矩形、锯齿以及三角形扰流体.基于压力测量结果,分析了空腔振荡模态频率特征,并使用修正的预测攻势对空腔流激振荡模态频率进行了预测,并对四种扰流体控制下的频谱特征进行了分析,结果表明,在上游安装圆柱扰流体效果最好。 In this paper, based on the wall dynamic pressure sensor, the characteristics of cavity flow oscillation are studied. On this basis, four kinds of passive control methods are designed to suppress the cavity flow oscillation, that is to say, cylindrical, rectangular, serrated and triangular disturbing fluid are installed in the cavity.According to the pressure measurement results, the cavity oscillation mode frequency Characteristics of the cavitations, and predict the frequency of the cavity flow oscillation mode by using the modified predictive offensive. The spectral characteristics under the control of four kinds of disturbing fluid are analyzed. The results show that the effect of installing the cylindrical disturbing fluid on the upstream is the best.