对应用射流孔的高负荷压气机直叶栅进行了实验研究,着重研究了孔隙射流对削弱尾缘附近流动分离和损失的效果。实验包括八种叶栅方案,采用五孔探针测量出口速度和压力分布。同时给出吸力面墨迹流动显示和端壁静压分布。结果表明,孔隙射流对端壁静压的影响很小,叶栅中部损失明显降低,最佳开孔位置位于25%叶高处,相对损失最大降低5.5%。 Experimental research on high-pressure compressor straight cascades with jet holes was conducted. The effect of pore jet on weakening the flow separation and loss near the trailing edge was emphatically studied. The experiment consisted of eight cascade solutions using a five-hole probe to measure outlet velocity and pressure distribution. At the same time, the suction surface ink flow display and end wall static pressure distribution are given. The results show that the influence of pore jet on the static pressure of the endwall is very small and the loss in the central part of the cascade is significantly reduced. The optimum opening position is located at 25% leaf height with the maximum relative loss reduced by 5.5%.