气波引射器是一种新型的高效动态引射装置。为了验证径流式转子结构的可行性与高效性，分别建立两种不同结构类型的转子气波引射器物理模型，利用计算流体动力学（CFD）技术分别对其性能展开分析，并在相同结构与工况条件下，对比二者在引气和增压性能上的差异。结果表明：同等条件下，由于径流式转子能有效利用离心力推动气体流动，增强激波强度，其引射率与等熵效率约比轴流式转子高10%~20%，证明径流式转子的可行性。在此基础上通过改变设备转速进行模拟，得到在膨胀比为1.5,压缩比分别为1.1,1.2和1.2条件下，设备转速n为2 757 r/min时性能达到最优。

Gas wave ejector is a new efficient dynamic ejector.In order to verify the feasibility and high efficiency of the runoff rotor structure,the physical models of two kinds of rotor gas wave ejectors with different structure types are established,which performances are analyzed by using computational fluid dynamics (CFD) technology respectively.Under the same structure and working condition,the differences in gas injection and pressurization performance between two different types are compared.The result shows that under the same condition,because the runoff rotor can effectively use the centrifugal force to push the gas flow and enhance the shock wave intensity,its ejection rate and isentropic efficiency are about 10% to 20% higher than those of the axial flow type,which proves the feasibility of the runoff rotor.On this basis,the simulation is carried out by changing the equipment speed,it is found that the performance of the equipment is optimal at the speed n of 2 757 r/min under the expansion ratio of 1.5 and the compression ratios of 1.1,1.2 and 1.3.

TE93

国家重点研发计划（2018YFA0704602）