旋转总压畸变对压气机稳定性影响的二维不可压缩模型  

Two-dimensional incompressible model of effects of rotating inlet distortion on flow instability in compression systems

作　　者：张环[1] 胡骏[1] 刘大响[1] 屠宝锋[1] 王志强[1] 

机构地区：[1]南京航空航天大学能源与动力学院,南京210016

出　　处：《航空动力学报》2009年第8期1773-1784,共12页Journal of Aerospace Power

基　　金：国家973项目(2007CB210301)

摘　　要：以Moore-Greitzer模型为基础,发展了一个预测轴流压缩系统动态失速特性及进气非均匀性影响的二维不可压缩理论模型,并利用该模型计算分析了进气总压畸变的幅值和旋转频率对下游压气机稳定性的影响.计算结果表明:进气总压畸变的幅值和旋转频率对压缩系统的动态失速特性和稳定性都有强烈的影响,旋转频率对旋转失速边界和喘振边界的影响类似.但是,对应系统稳定裕度损失最大值的"危险"响应频率强烈地依赖于其旋转失速的传播频率.Based on Moore-Greitzer model,a two-dimensional incompressible model was developed to predict the post stall transient and effects of nonuniform inlet flow on flow stability of compression systems,and calculations were presented in detail to predict the post stall transient behavior and the onset of flow instabilities in axial compression systems with rotating inlet total pressure distortion.It's found that both the inlet distortion amplitude and rotating frequency have a strong effect on the stability and ...

关 键 词：压缩系统 稳定性 旋转失速 喘振 旋转总压畸变 危险频率 

分 类 号：V231[航空宇航科学与技术—航空宇航推进理论与工程]