Numerical research on effect of stator blade slot treatment on single stage compressor characteristic

Abstract

Based on the thought that jet from slot outlet can control boundary layer,the slot treatment technology from pressure surface to suction surface of blade was proposed,while a slot solution on the stator blade was designed to conduct numerical simulation of the single stage compressor characteristic after slot treatment.The results show that stator blade slot treatment can effectively improve compressor performance and enlarge stable operation region.The jet from the slot outlet can blow off boundary layer separation flow and control separation region on the suction surface.