| 不均匀进气对压缩系统稳定性影响的逐级动态响应模型研究 |
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| 引用本文： | 吴虎,廉小纯,陈辅群.不均匀进气对压缩系统稳定性影响的逐级动态响应模型研究[J].推进技术,1999,20(2):56-60. |
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| 作者姓名： | 吴虎 廉小纯 陈辅群 |
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| 作者单位： | 西北工业大学航空动力与热力工程系,西安,710072 |
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| 摘 要： | 发展了一种分析进口畸变对多级轴流压气机影响的逐级动态响应模型。采用动态压缩系统模型和动态加载技术，建立了一种压缩系统气动稳定性分析的新方法。应用新的模拟方法对一８级跨声多级压气机进行了详细的数值分析。结果表明，所发展的逐级动态响应模型更合理和可靠。基于流动阻塞，给出了一种更为迅速的压缩系统失稳识别方法。
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| 关 键 词： | 航空发动机，轴流式压气机，气动稳定性，动态响应 |
| 修稿时间： | 1998-05-15 |
ON MODEL OF STAGE BY STAGE DYNAMIC BLADE RESPONSE FOR PREDICTING AERODYNAMIC STABILITIES IN MULTISTAGE AXIAL COMPRESSORS WITH INLET DISTORTIONS |
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| Wu Hu,Lian Xiaochun and Chen Fuqun.ON MODEL OF STAGE BY STAGE DYNAMIC BLADE RESPONSE FOR PREDICTING AERODYNAMIC STABILITIES IN MULTISTAGE AXIAL COMPRESSORS WITH INLET DISTORTIONS[J].Journal of Propulsion Technology,1999,20(2):56-60. |
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| Authors: | Wu Hu Lian Xiaochun and Chen Fuqun |
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| Abstract: | A new model was
presented for pedicting the effects of inlet distortions on the aerodynamic stabilities in
multistage axial compressors.The dynamic compression system model and dynamic loading
were used.The predictions for a eight stage transonic compressor were given using this model.
The numerical results show that this new model is both more reasonable and more
reliable.Based on flow blockage a new parameter of determining flow instability was found.It is
apparent that this parameter is a better early warning criterion of predicting the stage in which
the flow instabilities occur |
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| Keywords: | ircraft engine Axial flow compressor Aerodynamic stability Dynamic response |
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