前置导叶对后加载叶栅气动性能的影响  

THE EFFECT OF THE GUIDE VANE ON AERODYNAMIC CHARACTERISTICS OF THE CASCADES WITH AFT-LOADED PROFILE

作　　者：周逊[1] 韩万金[1] 王仲奇[1] 

机构地区：[1]哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨150001

出　　处：《工程热物理学报》2005年第4期584-586,共3页Journal of Engineering Thermophysics

基　　金：高等学校博士学科点专项科研基金资助课题(No.20030213022)

摘　　要：详细测量了平行进口端壁附面层与设置导向叶栅两种进口条件下后加载涡轮叶栅的气动参数。测量结果表明, 导向叶栅的设置加强了实验叶栅内的横向流动,这就造成了“C”型压力分布(弯叶片)和具有正径向压力梯度的压力分布(直叶片)产生的位置较无导叶时提前了。The aerodynamic parameters of the aft-loaded cascades with or without the guide vanes were investigated. The measured results show that the cross flow in tested cascades became stronger when setting the guide vane, so the positions of the 'C' type pressure distribution (bowed cascade) and the positive radial pressure gradient (straight cascade) formed earlier than that not set the guide vane.

关 键 词：前置导叶 后加载叶栅 气动性能 

分 类 号：TK474[动力工程及工程热物理—动力机械及工程]