前置导叶对叶栅出口涡系的影响  

Effects of Front Guide Vanes on Exit Vortices in a Turbine Cascade

作　　者：韩万今[1] 顾中华[1] 芦文才[1] 周逊[1] 王仲奇[1] 

机构地区：[1]哈尔滨工业大学241教研室,哈尔滨150001

出　　处：《航空动力学报》2000年第3期246-250,共5页Journal of Aerospace Power

基　　金：国家自然科学基金资助项目!( 5 963 6180 );博士点基金资助项目!( 970 2 13 0 5 )

摘　　要：详细测量了平行进口端壁附面层与设前导叶两种进口条件下某涡轮叶栅的出口流场。测量结果表明 ,两种情况下在叶栅出口形成了类似的涡系结构 ,但是条件不同涡系形成的机制不同。此外 ,损失的大小与分布也发生了变化。The exit flow fields of a turbine cascade with or without the front guide vanes were investigated.The measured results show that the similar vortex structures are formed in these two cases,but the mechanisms of their formations are different.In addition,the amounts and distributions of the losses in the case with the front guide vane are also changed in comparison with those in the cascade without the front guide vanes.

关 键 词：附面层 导向叶片 出口流场 测量 涡系结构 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]