Main reason of compressor instability is boundary layer separation on the surface of blades. As one of flow control methods of the compressor, slotted blade has attracted many researchers’ attention because of its simple geometric structure and remarkable flow control effect. In order to evaluate its availability in the compressor, a type of convergent slot is designed to implement in a single-stage transonic axial compressor. Three configurations, i.e. rotor slot, stator slot and rotor-stator combined slot, are introduced to study the aerodynamic performance of compressor by numerical simulations. Furthermore, flow structures have been analyzed to explain the corresponding mechanism. The results show that overall stability margin of the compressor has been improved by flow control with slotted blade. Behavior of the rotor slot is better than that of the stator slot, but due to mass flow leakage in the slot, peak efficiency and chocking mass flow rate of the compressor are decreased by 1.18% and 3.8% respectively. The low momentum flow on pressure surface is sucked into the jet slot of stator blade, which improves the overall stability margin of 0.63%. The combined scheme with slotted rotor and slotted stator has obtained the best aerodynamic behavior with the increase of the overall stability margin of 2.83%. During the future research, main goal will be improvement of the compressor performance and extension of the mass flow rate range.

压缩机不稳定的主要原因是叶片表面的边界层分离。开槽叶片作为压缩机的一种流量控制方法，由于其简单的几何结构和卓越的流量控制效果而引起了众多研究者的关注。为了评估其在压缩机中的可用性，设计了一种会聚槽以在单级跨音速轴向压缩机中实施。介绍了转子槽，定子槽和转子-定子组合槽三种配置，通过数值模拟研究了压缩机的气动性能。此外，已经对流动结构进行了分析以解释相应的机理。结果表明，通过带缝叶片的流量控制，压缩机的整体稳定性得以改善。转子槽的性能要好于定子槽的性能，但是由于槽中的质量流泄漏，压缩机的峰值效率和阻塞质量流率分别降低了1.8％和3.8％。压力表面上的低动量流被吸入到定子叶片的喷射槽中，从而提高了0.63％的整体稳定性裕度。开槽转子和开槽定子的组合方案获得了最佳的空气动力学性能，整体稳定性裕量增加了2.83％。在未来的研究中，主要目标将是改善压缩机性能和扩大质量流量范围。压力表面上的低动量流被吸入到定子叶片的喷射槽中，从而提高了0.63％的整体稳定性裕度。开槽转子和开槽定子的组合方案获得了最佳的空气动力学性能，整体稳定性裕量增加了2.83％。在未来的研究中，主要目标将是改善压缩机性能和扩大质量流量范围。压力表面上的低动量流被吸入到定子叶片的喷射槽中，从而提高了0.63％的整体稳定性裕度。开槽转子和开槽定子的组合方案获得了最佳的空气动力学性能，整体稳定性裕量增加了2.83％。在未来的研究中，主要目标将是改善压缩机性能和扩大质量流量范围。