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在低速轴流压气机转子叶片吸力面50%叶高沿轴向埋入5个Kulite动态压力传感器,并采用固定在压气机转轴上一种新型可存储的数据采集器记录数据,对近设计点和2 kr/min转速不同流量工况条件下转子叶片表面静压进行了实验测量,并与CFD数值模拟结果进行了对比。结果表明,除近失速点外,叶片表面静压实验测量值与计算结果吻合较好,说明所采用的的测量方法是成功的,测量结果是可靠的;在近失速工况,实验值与计算结果差值较大,主要是由试验台振动所引起的实验误差和CFD数值计算对近失速点工况流场模拟得不够准确所导致的。
In the low-speed axial compressor rotor blade suction surface 50% of the leaf surface height along the axial embedded Kulite dynamic pressure sensor and fixed on the compressor shaft a new type of data storage device can record data on the design point And the static pressure at rotor surface under 2kr / min rotating speed under different flow conditions were measured and compared with the CFD numerical simulation results. The results show that except for the near stalling point, the measured value of the static pressure on the blade surface is in good agreement with the calculated result, indicating that the measuring method adopted is successful and the measurement result is reliable. In the near stalling condition, the experimental value and calculation The difference between the results is large, mainly due to the experimental error caused by the vibration of the test bench and CFD numerical calculation caused by the inaccurate simulation of the flow field near the stall point.