热科学学报（英文版）2006，Vol.15Issue(3)：193-199,7.
Influences of a Kind of Groove-blade on the Flow Field in a Compressor Cascade
Influences of a Kind of Groove-blade on the Flow Field in a Compressor Cascade
摘要
Abstract
This paper presents an experimental investigation of effects of a kind of streamwise-grooved blades on the flow field in a compressor cascade. The flow field downstream the cascade and the boundary layer on the suction surface were measured using a mini 5-hole pressure probe at different incidence angles. The flow field in the groove cascade was compared with that in the smooth cascade. The measurement results indicate that: (1) the groove surface can restrain the development of the boundary layer on the suction surface; (2) the grooves can restrain the radial migration of the low-energy fluids in the boundary layer on the suction surface; (3) the groove blades can reduce total pressure loss and flow blockage in the cascade at the incidence angles of 0°, 5° and 8°; (4) the maximum benefit of 8.6% loss reduction was obtained at the incidence angle of 5° while negative benefit of -3.0% loss reduction occurred at the incidence angle of-5°.关键词
groove blade/compressor cascade/secondary flow/flow loss/boundary layerKey words
groove blade/compressor cascade/secondary flow/flow loss/boundary layer分类
能源科技引用本文复制引用
Hongwei MA,Wuying YAN,Qiao TIAN..Influences of a Kind of Groove-blade on the Flow Field in a Compressor Cascade[J].热科学学报（英文版）,2006,15(3):193-199,7.基金项目
The authors would like to acknowledge National Natural Science Foundation of China for the support projects Grant No.50376002. （）
