进气畸变条件下新型机匣处理扩稳效果实验研究

doi:10.7527/S1000-6893.2013.0248

流体力学与飞行力学

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进气畸变条件下新型机匣处理扩稳效果实验研究

熊珊^1,2, 孙大坤², 所秋玲², 陈俊², 孙晓峰²

1. 北京航空航天大学中法工程师学院, 北京 100191;
2. 北京航空航天大学能源与动力工程学院, 北京 100191

收稿日期:2013-02-25 修回日期:2013-05-05 出版日期:2013-12-25 发布日期:2013-05-09
通讯作者: 孙大坤，Tel.：010-82338262E-mail：sundk@buaa.edu.cn E-mail:sundk@buaa.edu.cn
作者简介:熊珊男，硕士研究生。主要研究方向：风扇/压气机扩稳。E-mail：xiongshan_happy@163.com；孙大坤男，博士，讲师。主要研究方向：压气机流动稳定性。Tel：010-82338262E-mail：sundk@buaa.edu.cn；孙晓峰男，博士，教授，博士生导师。主要研究方向：气动声学，非定常流动。Email：sunxf@buaa.edu.cn
基金资助:
国家“973”计划（2012CB720201）；国家自然科学基金（51106154，51010007，51236001）；中央高校基本科研业务费专项资金

Experimental Investigation of Novel Casing Treatment on Stall Margin Enhancement Under Inlet Distortion

XIONG Shan^1,2, SUN Dakun², SUO Qiuling², CHEN Jun², SUN Xiaofeng²

1. Sino-French Engineer School, Beihang University, Beijing 100191, China;
2. School of Energy and Power Engineering, Beihang University, Beijing 100191, China

Received:2013-02-25 Revised:2013-05-05 Online:2013-12-25 Published:2013-05-09

摘要/Abstract

摘要：

为考察在总压进气畸变条件下对压气机流动稳定性的影响以及如何进行有效扩稳，开展了一种新型机匣处理扩大轴流风扇/压气机稳定裕度的实验研究。主要内容包括：进气畸变下的压气机流量-压比特性实验，研究新型机匣处理的扩稳效果，并对压气机工作效率的影响进行了评估。实验结果表明：①进气畸变下，压气机压升-流量特性曲线失速边界向右下偏移，即压气机失速裕度变小，并且畸变程度越高，失速裕度损失越多；②新型机匣处理在进气畸变条件下对风扇/压气机有显著的扩稳效果，失速裕度可提高5%~8%；③较大（20%以上）进气畸变条件下，机匣处理会带来1%~2%左右的压气机效率损失，而较小（20%以内）进气畸变条件下，机匣处理在扩稳的同时，可以基本保持压气机工作效率不变。

关键词: 风扇/压气机, 总压畸变, 旋转失速, 新型机匣处理, 失速裕度

Abstract:

Inlet pressure distortion is a common factor which induces rotating stall of an aero-engine fan/compressor. A novel casing treatment is used to enhance the stall margin of the fan/compressor. In the present work, experimental study is conducted on the effect of the novel casing treatment in the conditions of inlet pressure distortion. The flow-pressure ratio characteristic of a low-speed fan under inlet distortion and its efficiency characteristic with casing treatment are also investigated. The results show that the flow-pressure curve moves to the lower-right direction under inlet distortion. The more the distortion becomes, the more the curve moves. The novel casing treatment improves the stall margin (5%-8%) significantly in the condition of different distortion degrees. As for efficiency characteristic, below 20% distortion, the casing treatment does not incur recognizable efficiency loss of the fan, while above distortion, the efficiency loss is about 1%-2%.

Key words: fan/compressor, inlet pressure distortion, rotating stall, novel casing treatment, stall margin

中图分类号:

V231.3

熊珊, 孙大坤, 所秋玲, 陈俊, 孙晓峰. 进气畸变条件下新型机匣处理扩稳效果实验研究[J]. 航空学报, 2013, 34(12): 2692-2700.

XIONG Shan, SUN Dakun, SUO Qiuling, CHEN Jun, SUN Xiaofeng. Experimental Investigation of Novel Casing Treatment on Stall Margin Enhancement Under Inlet Distortion[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2013, 34(12): 2692-2700.

参考文献

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

进气畸变条件下新型机匣处理扩稳效果实验研究

Experimental Investigation of Novel Casing Treatment on Stall Margin Enhancement Under Inlet Distortion

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