中文摘要：

一个接近音速的压缩机转子的不稳定的尖端流动领域上的试验性的调查被执行了。装盒子的高频率反应压力变换器沿着片弦和片沥青被安排。弦明智的被用来显示平均的整体和在 95% 设计速度和 60% 设计速度下面在不同的操作的点改变转子的尖端区域的流动结构的时间。沥青明智的环绕的变换器主要被用来以近的货摊条件在转子框架分析尖端漏流动的摇摆频率。有二的 casing 墙压力表演的轮廓在片段落清除低压力区域，沿着弦方向的，沿着正切的方向由漏流动和其它引起了，也许由向前打扫的前缘引起了。两个低压力区域从前缘被发源并且形成了一个象剪一样流动模式。以 95% 设计速度状况，冲击波与低压力区域交往了并且使流动地不稳定。与减少的集体流动，二个低压力区域逐渐地收缩了到前缘然后尖铁骚乱出现了。

英文摘要：

An experimental investigation on the unsteady tip flow field of a transonic compressor rotor has been performed.The casing-mounted high frequency response pressure transducers were arranged along both the blade chord and the blade pitch.The chord-wise ones were used to indicate both the ensemble averaged and time varying flow structure of the tip region of the rotor at different operating points under 95% design speed and 60% design speed.The pitch-wise circumferential transducers were mainly used to analyze the unsteadiness frequency of the tip leakage flow in the rotor frame at the near stall condition.The contours of casing wall pressure show that there were two clear low pressure regions in blade passages,one along the chord direction,caused by the leakage flow and the other along the tangential direction,maybe caused by the forward swept leading edge.Both low pressure regions were originated from the leading edge and formed a scissor-like flow pattern.At 95% design speed condition,the shock wave interacted with the low pressure region and made the flow field unsteady.With the mass flow reduced,the two low pressure regions gradually contracted to the leading edge and then a spike disturbance emerged.