Boundary layer separation control on a highly-loaded,low-solidity compressor cascade  

作　　者：Zhou Yang,Liu Huo-xing,Zou Zheng-ping and Ye Jian National Key Lab.on Aero-Engines,Aero-Engines Simulation Research Center,Beijing Univ.of Aero.& Astro.,Beijing 100083 

出　　处：《Journal of Thermal Science》2010年第2期97-104,共8页热科学学报（英文版）

基　　金：support from the National Natural Science Foundation of China as part of the Free Application Project (No.50776003);supported and funded by the Key Program of Aviation Science Foundation,Grant No.2007ZB51018

摘　　要：Separated flow can be effectively controlled through the management of blade boundary layer development.Numerical simulations on a highly-loaded,low-solidity compressor cascade indicate that combined blowing and suction flow control technique can significantly improve cascade performance,especially in increasing the cascade loading and static pressure ratio as well as decreasing the loss coefficient.Meanwhile,it is more effective to improve cascade performance by blowing near leading edge on suction surface than suction near trailing edge.Both the locations and flow rates of blowing and suction are major impact factors of this method to cascade performance.Comparing to the baseline,the static pressure ratio increases by 15% and loss coefficient decreases by 80%,with a blowing fraction of 1.7% and a suction fraction of 1.38% of the inlet mass flow.

关 键 词：combined blowing and suction flow control compressor cascade boundary layer separated flow 

分 类 号：TH45[机械工程—机械制造及自动化]