The development of boundary layer affects the compressor cascade performance to a certain extent. Therefore, the compound lean and little blades are selected to redistribute the boundary layer, and the influences of these two flow control technologies on the axial compressor cascade performance are further studied. The calculated results showed that appropriate high pressure region on the blade suction surface near the end-wall is helpful to reduce the total pressure loss of compressor cascade, which can be achieved by positive lean technique. Meanwhile, the maximum stable operation boundary can be expanded by the application of positive leaned blade. On the other hand, the introduction of negative lean angle not only increases the total pressure loss of cascade, but reduces the stable operation range. As the little blades are introduced in the negative lean compressor cascade, the stable operation range is significantly improved by the introduction of little blades. Especially the cascade with −10° lean angle, the maximum stable operation boundary is increased from 1° to 6°. In the positive lean compressor cascade, although more low-energy fluid is accumulated on the blade suction surface near the mid-span, the little blades still show an active role in reducing the total pressure loss and expending the stable operation range, because the influence range of induced vortex reaches 30%span. The results provide a reference for improving the aerodynamic performance of compressor stator, especially when more low-energy fluid is blocked in the range near the mid-span.

边界层的发育在一定程度上影响压气机叶栅性能。因此，选择复合稀薄叶片对边界层进行重新分配，进一步研究了这两种流量控制技术对轴流压气机叶栅性能的影响。计算结果表明，端壁附近叶片吸力面适当的高压区有助于降低压气机叶栅的总压力损失，这可以通过正稀化技术实现。同时，正倾叶片的应用可以扩大最大稳定运行边界。另一方面，负倾斜角的引入不仅增加了叶栅的总压力损失，而且降低了稳定运行范围。由于在负稀薄压气机级联中引入了小叶片，因此通过引入小叶片显着提高了稳定运行范围。特别是-10°倾斜角的级联，最大稳定运行边界从1°增加到6°。在正贫压气机叶栅中，虽然在中跨附近叶片吸力面上聚集了更多的低能流体，但小叶片在降低总压力损失和扩大稳定运行范围方面仍然表现出积极的作用，因为影响诱导涡的范围达到30%span。研究结果为提高压气机定子的气动性能提供了参考，特别是当更多低能流体阻塞在中跨附近的范围内时。小叶片的引入显着提高了稳定运行范围。特别是-10°倾斜角的级联，最大稳定运行边界从1°增加到6°。在正贫压气机叶栅中，虽然在中跨附近叶片吸力面上聚集了更多的低能流体，但小叶片在降低总压力损失和扩大稳定运行范围方面仍然表现出积极的作用，因为影响诱导涡的范围达到30%span。研究结果为提高压气机定子的气动性能提供了参考，尤其是在靠近中跨的范围内阻塞了更多的低能流体时。小叶片的引入显着提高了稳定运行范围。特别是-10°倾斜角的级联，最大稳定运行边界从1°增加到6°。在正贫压气机叶栅中，虽然在中跨附近叶片吸力面上聚集了更多的低能流体，但小叶片在降低总压力损失和扩大稳定运行范围方面仍然表现出积极的作用，因为影响诱导涡的范围达到30%span。研究结果为提高压气机定子的气动性能提供了参考，尤其是在靠近中跨的范围内阻塞了更多的低能流体时。在正贫压气机叶栅中，虽然在中跨附近叶片吸力面上聚集了更多的低能流体，但小叶片在降低总压力损失和扩大稳定运行范围方面仍然表现出积极的作用，因为影响诱导涡的范围达到30%span。研究结果为提高压气机定子的气动性能提供了参考，尤其是在靠近中跨的范围内阻塞了更多的低能流体时。在正贫压气机叶栅中，虽然在中跨附近叶片吸力面上聚集了更多的低能流体，但小叶片在降低总压力损失和扩大稳定运行范围方面仍然表现出积极的作用，因为影响诱导涡的范围达到30%span。研究结果为提高压气机定子的气动性能提供了参考，尤其是在靠近中跨的范围内阻塞了更多的低能流体时。