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.
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
关键词
非定常流
频率特性
声激励
试验研究
unsteady flow
frequency characteristic
sound excitation
experimental investigation
