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本文采用数值方法针对对转超音压气机转子叶片排间的相互干涉效应进行了研究,分析了超音转子在两级转子叶片排间具有三种不同轴向间距情况下的性能和前排转子叶片尾迹影响下的超音转子非定常特征。研究结果表明,轴向间距的增大使得尾迹在较长的间距内经过了较为充分的掺混,超音转子最大压比和最高效率随轴向间距的变大而增大;前排叶片尾迹的影响范围从超音转子叶片压力面直至吸力面,横贯整个叶片通道,较高叶展处的尾迹强于较低叶展处;横贯超音转子通道内的低压动叶尾迹先后与斜激波和正激波相互作用,尾迹区内熵进一步增大,并且由于尾迹区的传播速度由主流速度决定,尾迹在通道内继续向下游传播且传播显著延迟于通道外。
In this paper, the numerical method is used to study the mutual interference effect of the rotor blades on the rotor of a transonic supersonic compressor. The performance of the supersonic rotor with three different axial distances between two rows of rotor blades and the performance of the front rotor Unsteady Characteristics of Supersonic Rotor Influenced by Blade Wake. The results show that the axial spacing increases the wake in a relatively long time after a more fully blended, the maximum pressure ratio and the maximum efficiency of the supersonic rotor increases with axial spacing increases; the front blade wake The influence ranges from the pressure surface of the supersonic rotor blade to the suction surface and traverses the entire blade passage. The wake of the higher leaf blade is stronger than that of the lower leaf blade. The wake of the low pressure blade traversing the path of the supersonic rotor is connected with the oblique shock wave And the forward shock wave, the entropy of the wake region increases further. And because the wake propagation velocity is determined by the main velocity, the wake propagates downstream and propagates significantly outside the channel.