The numerical results show that blade cutting causes the development of tip clearance vortices and blade passage blockages, which reduce the flow rate and the work done by the blade.

• 基于数值计算结果的流场分析表明，叶片磨短后叶顶间隙涡进一步发展，阻塞叶顶流道，使流量锐减，同时降低了叶片顶部区域做功能力。