轴流压气机叶尖射流扩稳试验

时培杰; 乔渭阳; 王良锋; 陈伟杰; 许坤波

doi:10.13224/j.cnki.jasp.2014.02.018

轴流压气机叶尖射流扩稳试验

doi: 10.13224/j.cnki.jasp.2014.02.018

西北工业大学动力与能源学院, 西安 710072

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出版历程
- 收稿日期: 2013-04-08
- 刊出日期: 2014-02-28

Experiment on axial-compressor stability enhancement by blade tip injection

School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, China

摘要

摘要: 采用转子叶尖射流对轴流压气机进行了扩稳试验研究.试验中对无射流的轴流压气机失速起始类型进行了测量，发现该轴流压气机以尖峰波的形式进入旋转失速；之后采用叶尖射流发现射流对压气机的失速起始过程没有明显影响.试验中对射流孔数目、射流孔周向分布和射流偏转角3个参数对压气机扩稳效果的影响进行了分析.测量结果发现：保持总射流流量不变，增加射流孔数目会降低轴流压气机扩稳效果；而在单个射流孔流量不变的情况下，增加射流孔数目会增大扩稳效果；射流孔周向分布越均匀扩稳效果越明显；射流扩稳效果与转子相对坐标系下的气动参数有直接关系，故采用相对坐标系下射流零攻角方向的动量分量与主流动量比值对扩稳效果进行了关联.
- 叶尖射流 /
- 扩稳 /
- 压气机 /
- 旋转失速 /
- 关联关系
Abstract: Experimental study of blade tip injection effects on the stability of a axial-compressor was carried out. The rotating stall signal was verified and spike type stall inception was detected when there was no injection, and it was found that the type of the stall inception signal did not change after tip injection was used. The effects of the number of tip injectors, circumferential distribution of injectors and yaw angle of injector on the effectiveness of stability enhancement were measured and analyzed. From the experimental results, it can be concluded that the stability was enhanced by either decreasing the number of injectors while keeping the total mass flow of injectors constant, or by increasing the number of injectors under the condition that the mass flow of a single injector keeps constant, and the stability was decreased by increasing the unevenness of injectors. It was also found that effectiveness of stability enhancement by tip injection was related to the parameters of injection flow in the relative frame of rotor. The association relation between the momentum component of the injection flow along the flow direction of zero incidence angle in the relative coordinate, which is scaled by the momentum of main flow, and effectiveness of stability enhancement was built.
- blade tip injection /
- stability enhancement /
- compressor /
- rotating stall /
- association relation

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参考文献(16)

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