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对某一定尺寸的六喷管超音速引射器进行气动性能的实验研究。结果表明:随着主次流压比P*p/P*s增加,引射系数及修正引射系数下降;当引射系数增加时,混合管动量修正系数Km下降,但主喷管流量系数μ变化不大。对上述工况进行理论计算的结果与实验数据符合良好。
Experimental study on the aerodynamic performance of a certain size six nozzle supersonic ejector. The results show that the injection coefficient and modified injection coefficient decrease with the increase of primary pressure ratio P * p / P * s. When the injection coefficient increases, the correction coefficient Km of mixed tube decreases, but the main nozzle flow coefficient μ changes little. The theoretical calculation of the above conditions is in good agreement with the experimental data.