The experimental results on supersonic flow around an axisymmetric annular cavity on the cylindrical body with a nose cone are presented. In experiments, the cavity pressure was measured and the schlieren images of flow around the body were visualized. The hysteresis phenomenon due to an abrupt change in the structure of flow around the cavity was identified when the cavity length and the attack angle of the body in the supersonic flow were continuously varied.

中文翻译：

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攻角下绕轴对称环形腔的超音速流动的实验研究

给出了绕着带有鼻锥的圆柱体上的轴对称环形腔进行超声速流动的实验结果。在实验中，测量了腔内压力，并显示了人体周围流动的刻痕图像。当在超声速流中腔体长度和主体的迎角连续变化时，可以识别出由于腔体周围流动结构的突然变化而引起的磁滞现象。