| 动态温度畸变下压缩系统稳定性模型研究 |
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| 引用本文： | 吴虎,廉小纯,陈辅群.动态温度畸变下压缩系统稳定性模型研究[J].推进技术,1994,15(5):34-40. |
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| 作者姓名： | 吴虎 廉小纯 陈辅群 |
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| 作者单位： | 西北工业大学航空发动机系 |
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| 摘 要： | 推导并建立了动态温度畸变下多级轴流压缩系统稳定性分析的理论模型，并给出了基于特征线和ＭａｃＣｏｒｍａｃｋ二步差分法的数值分析方法，基于级特性，模型对一三级实验压气机进行了数值分析，给出了进口动态温度畸变与稳定裕度损失及与不稳定发生时间的定量关联关系。本模型还确定了压气机失稳的首发级。
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| 关 键 词： | 轴流式 压缩机 系统稳定性 航空发动机 |
THE MODEL FOR PREDICTING AERODYNAMIC STABILITY IN THE AXIAL COMPRESSION SYSTEMS WITH INLET DYNAMIC TEMPERATURE DISTORTIONS |
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| Wu Hu,Lian Xiaochun and Chen Fuqun.THE MODEL FOR PREDICTING AERODYNAMIC STABILITY IN THE AXIAL COMPRESSION SYSTEMS WITH INLET DYNAMIC TEMPERATURE DISTORTIONS[J].Journal of Propulsion Technology,1994,15(5):34-40. |
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| Authors: | Wu Hu Lian Xiaochun and Chen Fuqun |
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| Abstract: | theoretical model is established for predicting the aerodynamic stabilities in muilti-stage axial compressor systems, with inlet dynamic temperature distortion. The numerical method is given based on a method of characteristics and MacCormack's finite difference scheme. By using this model, the predictions for a three-stage experimental axial compressor are given based on a set of stage-by-stage characteristics. The quantitive relationships between the inlet total temperature distortions and the surge margin losses or the time to surge are obtained. The first stage in which the flow instabilities occur is found using this method. |
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| Keywords: | Axial flow compressor System stability Temperature effect Stability prediction |
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