平面叶栅非定常流动试验方法研究  

Experimental Procedure Study on Unsteady Flow in Plane Cascade

作　　者：凌代军[1] 姜正礼[1] 仲永兴[1] 

机构地区：[1]中国燃气涡轮研究院,四川江油621703

出　　处：《燃气涡轮试验与研究》2006年第3期24-29,36,共7页Gas Turbine Experiment and Research

摘　　要：叶轮机内流的非定常流动特性对叶轮机的性能有重要影响,随着人们对内流非定常效应认识的逐步深入,研究内流非定常特性及其物理本质对提高叶轮机性能有着重要的意义。本文在平面叶栅试验器上进行了叶片表面分离流内旋涡的非定常特性测量和外加激励对叶栅性能影响的试验研究。The inner unsteady flow characteristics of impeller machine act an important influence on its performance. With an increasing understanding on inner unsteady flow, to investigate its character and physical hypostasis becomes very important. This paper presents an experimental investigation method on regular shedding vortex in two dimensional compressor cascade wake and the influence on excitation.

关 键 词：非定常流 频率特性 声激励 试验研究 

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] V211.15