为了探索高负荷压气机设计技术,提出了一种冲击-冲压式超声速压气机的设计方案。设计得到的冲击式转子在叶尖切线速度为457m/s下实现了4.6的压比和0.88的绝热效率,该转子的出口马赫数高达2.1,采用了冲压式静子来实现减速扩压,结合边界层吸气等手段,最终整级的压比为3.4,绝热效率为0.72。结果表明:这种超声速压气机设计方案可以实现较高的负荷和可以接受的效率,是一种值得关注与研究的高负荷压气机气动布局。 

An impulse-ram type supersonic compressor was proposed in order to explore highly-loaded compressor design technique. The rotor is an impulse-type design with tip velocity of 457m/s, pressure ratio 4.6and adiabatic efficiency of 0.88. A ram-type stator was designed to achieve flow diffusion and accommodate the flow at the exit of the rotor, which is as high as Mach number of 2.1. With boundary layer suction, the final compressor stage gives pressure ratio of 3.4and adiabatic efficiency of 0.72. The result suggests that the impulse-ram type supersonic compressor can achieve high load and acceptable efficiency, which states that it is an aerodynamic configuration worthy of concern and investigation. 