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本文着重介绍了应用高频响测试系统测量壁面瞬态静压分布的方法。通过对测试系统的选择,保证测量方法和测试精度,并对传感器及测试系统逐一进行静态校准。试验使用Kulite微型压力传感器测量单级风扇转子叶尖壁面处在(?)=0.87、0.90、0.95、1.0各状态下的压力分布情况,通过事后数据计算及处理,分析了激波位置以及当转速和气流发生改变时,叶片槽道内气体流动的变化状况,绘成瞬态静压的彩色等压线图,直观地反映出了激波的分布及气体流动情况。综合设计状态理论计算及数据分析结果,证明激波位置的测试是成功的。
This article focuses on the application of high-frequency test system to measure wall transient static pressure distribution method. Through the choice of test system to ensure that the measurement methods and test accuracy, and the sensor and test system one by one static calibration. The Kulite miniature pressure sensor was used to measure the pressure distribution in the single-stage fan rotor tip wall under the condition of (?) = 0.87, 0.90, 0.95 and 1.0. The post-processing data were used to analyze the position of the shock wave and the rotation speed And when the airflow changes, the variation of the gas flow in the vane channel and the color isobologram drawn as transient static pressure directly reflect the distribution of the shock wave and the gas flow. Based on the theoretical calculation of the design state and the result of data analysis, it is proved that the test of shock location is successful.