振荡叶栅传播失速不稳定流场的离散旋涡法数值模拟  

NUMERICAL SIMULATION FOR UNSTEADY FLOW IN OSCILLATING CASCADE WITH PROPAGATING STALL USING DISCRETE VORTEX METHOD

作　　者：西斯托 吴文权[2] 

机构地区：[1]美国斯蒂文思理工学院 [2]中国科学院工程热物理研究所

出　　处：《工程热物理学报》1989年第2期152-157,共6页Journal of Engineering Thermophysics

摘　　要：采用离散旋涡法对振荡叶栅传播失速不稳定流场进行了数值模拟。分片线性化与再校正技术节省了大量计算时间。进行了一系列数值试验包括:进气冲角对传播失速的定量影响;叶片振动频率与振幅的不同响应;随时间流谱与旋涡分布变化的分析,可以显示传播失速的时间与空间传播。本工作为叶片失速颤振气动弹性问题研究的一部分。The unsteady flow in an oscillating cascade with propagating stall was simulated numerically with discrete vortex method. Owing to the employment of the piecewise linearization and recorrection technique the needed computational time has been decreased distinctly. A series of numerical tests were performed for the studies of the quantitative effect of incidence, propagation of the stall, the response of the frequency and amplitude of vibration etc.

关 键 词：离散旋涡法 振荡叶栅传播失速不稳定流场 数值模拟 进气冲角 叶片振动频率 时间流谱 旋涡分布 

分 类 号：TH45[机械工程—机械制造及自动化]