中文摘要：

针对弯角为60°的高负荷扩压叶栅,采用实验校核CFD方法探究带有叶顶间隙叶栅流场损失形成机制,并通过沿流向端壁开槽研究端壁附面层抽吸对流场性能的影响.结果表明,高负荷扩压叶栅间隙及角区无序性流动具有空间三维性,端壁抽吸可以延缓泄漏涡形成结点,消除泄漏涡破碎现象,改善流场结构.

英文摘要：

The numerical simulation verified by an experiment was conducted to study mechanism of loss generation of the compressor cascade with tip clearance which bowed angle is60°. The effect of endwall boundary layer aspiration on flow property was studied by means of boundary aspiration on endwall. Results show that flow in tip and corner assumes three dimensional property,and via boundary aspiration on endwall,the tip leakage vortex generation was delayed,and the phenomenon of vortex breakdown was eliminated,so that the flow performance was improved.