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 ...
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2009年第8期1773-1784,共12页
Journal of Aerospace Power
基金
国家973项目(2007CB210301)
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
compression system
stability
rotating stall
surge
rotating total pressure distortion
dangerous frequency
