| 三级风扇进气压力畸变特性分析 |
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| 引用本文： | 叶巍,相恒超,周志文.三级风扇进气压力畸变特性分析[J].燃气涡轮试验与研究,2011,24(1):25-28. |
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| 作者姓名： | 叶巍 相恒超 周志文 |
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| 作者单位： | 中航工业涡轮院,四川成都,610500 |
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| 摘 要： | 基于多子区平行压气机彻体力模型,就某风扇特性和S2流面计算结果进行了气动稳定性的评估与分析.介绍了进口流场畸变对风扇稳定性影响的数学模型,并阐述了该模型的求解方法;计算和分析了压力畸变对风扇稳定性影响的结果,并讨论了压力畸变在风扇系统中的传递和分布情况.计算结果表明:风扇在相对换算转速75%下稳定裕度储备可能不足;中低...
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| 关 键 词： | 风扇 压力畸变 临界畸变指数 畸变敏感系数 稳定裕度损失 |
Inlet Pressure Distortion Characteristic Analysis of a Three-stage Fan |
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| YE Wei,XIANG Heng-chao,ZHOU Zhi-wen.Inlet Pressure Distortion Characteristic Analysis of a Three-stage Fan[J].Gas Turbine Experiment and Research,2011,24(1):25-28. |
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| Authors: | YE Wei XIANG Heng-chao ZHOU Zhi-wen |
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| Institution: | YE Wei,XIANG Heng-chao,ZHOU Zhi-wen(China Gas Turbine Establishment,Chengdu 610500,China) |
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| Abstract: | Based on body force model of multi-region parallel compressor,the aerodynamic stability is evaluated and analyzed according to the performance and S2 flow field results of a three-stage fan.This paper presents the mathematic model and introduces the calculation method of it.It calculates and analyses the effect of inlet pressure distortion on aerodynamic stability of the fan,and discusses the transfer and distribution of pressure distortion in the fan system.Results indicate that stability margin may be ins... |
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| Keywords: | fan pressure distortion critical distortion index distortion sensitivity coefficient stability margin loss |
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