动态压力畸变下压缩系统稳定性分析  

PREDICTION FOR AERODYNAMIC STABILITY IN MULTISTAGE AXIAL COMPRESSION SYSTEMS WITH INLET DYNAMIC PRESSURE DISTORTION

作　　者：吴虎[1] 廉小纯[1] 陈辅群 

机构地区：[1]西北工业大学航空动力与热力工程系

出　　处：《推进技术》1996年第4期32-36,共5页Journal of Propulsion Technology

基　　金：航空科学基金

摘　　要：基于逐级压缩系统模型，发展了一种动态压力畸变下压缩系统失稳识别的数值预测方法。应用方法对一多级轴流压缩系统进行了数值分析。给出了动态压力脉动频率与压缩系统失稳首发级及不稳定发生时间之间的定量关联关系。stage-by-stage compression system model for predicting aerodyamic stability in multistage axial compressors with inlet dynamic pressure distortion is given in this paper. Based on dynamic static pressure variations, a method of recognition of predicting aerodynamic stability is developed. Numerical results of a three-stage experimental axial compressor are given by using thismethod. The critical positions of inlet total pressure fluctuations are determined. The quantitive relationships between inlet total pressure fluctuations and the surge time are obtained. The initial stage inwhich the flow in-stabilities first occurring is indicated.

关 键 词：轴流式压缩机 进气道畸变 气动稳定性 

分 类 号：V235.113[航空宇航科学与技术—航空宇航推进理论与工程]