有周向倾斜叶片的压气机叶栅的实验研究  

EXPERIMENTAL INVESTIGATION OF COMPRESSOR CASCADE WITH CIRCUMFERENTIAL LEANED BLADE

作　　者：尚尔兵 苏杰先[1] 王仲奇[1] 徐文远[1] 石红[1] 卢文才[1] 

机构地区：[1]哈尔滨工业大学

出　　处：《工程热物理学报》1992年第4期363-368,共6页Journal of Engineering Thermophysics

摘　　要：本文对具有常规直叶片和周向倾斜25°叶片的压气机平面叶栅进行了吹风实验,叶片叶型是NACA 65系列的大转角叶型。还应用墨迹法进行流场显示,从出口测量结果和流场显示照片可见:叶片正倾斜可以消除压气机叶栅的壁角失速,叶片负倾斜却使壁角失速加大。同时本文还从涡动力学角度分析了消除壁角失速及减少损失的机理。In this paper the investigation is made for rectilear compressor cascade with a ordinary straight blade and a 25 deg leaned blade. The est blade profile is a large camber NACA65 blade series. The ink traces method is used for flow visualization. From the five-hole probe measurements at the exit planes of cascades and the flow visualizations, It can be concluded that the positive leaning can cause the corner stall to be eleminated while the negative leaning will make the corner stall become larger. And based on vortex dynamics, an atempt is being made on the explanation for the mechanism of reducing losses while the blad is leaned-

关 键 词：压气机 叶栅 叶片 

分 类 号：TH45[机械工程—机械制造及自动化]