低速轴流压气机中气动旋转不稳定性和叶顶泄漏流脉动特性

王昊; 吴亚东; 欧阳华

doi:10.13224/j.cnki.jasp.2016.09.025

低速轴流压气机中气动旋转不稳定性和叶顶泄漏流脉动特性

doi: 10.13224/j.cnki.jasp.2016.09.025

1. 上海交通大学机械与动力工程学院, 上海 200240;
2. 上海交通大学航空航天学院, 上海 200240

基金项目:

国家自然科学基金（11202132）；2011航空发动机协同创新计划

详细信息

作者简介:
王昊(1986-),男,吉林长春人,博士生,主要从事叶轮机械内部非定常流动方面的研究.

中图分类号: V231.3
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- 被引次数: 0
出版历程
- 收稿日期: 2014-12-15
- 刊出日期: 2016-09-28

Aerodynamic rotating instability and fluctuated characteristics of tip clearance flow in low speed axial flow compressor

1. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
2. School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai 200240, China

摘要

摘要: 为了探究气动旋转不稳定性和叶顶泄漏流脉动特性的关系，对一台1.5级低速轴流压气机进行了实验和数值研究.在转子顶部机匣上布置动态压力传感器，采集不同流量下叶顶的压力脉动信号，在小流量下捕捉到了旋转不稳定性的产生.通过锁相平均和方均根压力图谱，发现当叶顶泄漏流与相邻叶片发生干涉时叶顶流场脉动显著增强.对压气机转子进行全通道数值模拟，发现叶顶泄漏流在小流量下发生周期性振荡，且相邻流道间的压力脉动具有相位延迟，这诱导产生了一个具有多重频率的旋转压力波.通过频谱分析发现：脉动的叶顶泄漏流产生的旋转压力波与旋转不稳定性具有一致的频率特性，表明叶顶泄漏流的脉动对压气机中旋转不稳定性的产生具有重要作用.
- 气动旋转不稳定性 /
- 叶顶泄漏流脉动特性 /
- 动态压力测量 /
- 锁相平均 /
- 频率特性
Abstract: To investigate the relationship between aerodynamic rotating instability and fluctuated characteristics of tip clearance flow, experiment and numerical studies were conducted on a 1.5 stage low speed axial flow compressor. The rotating instability was detected through casing mounted dynamic pressure sensors. The phase-locked and root mean square(RMS) pressure contours showed that the interaction of tip clearance flow with the neighboring blade was the most likely cause of casing flow field fluctuation. From the calculated results of whole-annulus cascade, it is found that the tip clearance vortex structure oscillates periodically at low flow rate conditions. Furthermore, phase lag of pressure fluctuations exist between two neighboring passages, which induces a rotating pressure wave of multiple frequencies. The frequency characteristics of this rotating pressure wave caused by fluctuation of tip clearance flow are coincident with the frequency of rotating instability. This suggests that the fluctuation of tip clearance flow is the major contributor to the initiation of rotating instability.
- aerodynamic rotating instability /
- fluctuated characteristics of tip clearance flow /
- unsteady pressure measurements /
- frequency characteristics /
- phase-locked average

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参考文献(18)

[1]	Mathioudakis K,Breugelmans F A E.Development of small rotating stall in a single stage axial compressor[R].ASME Paper 1985-GT-0227,1985.
[2]	Baumgartner M,Kameier F,Hormouziadis J.Non engine order blade vibration in a high speed compressor[R].International Symposium on Airbreathing Engines,ISABE Paper 95-7094,1995.
[3]	Kameier F,Neise W.Rotating blade flow instability as a source of noise in axial turbomachines[J].Journal of Sound and Vibration,1997,203(5):833-853.
[4]	Kameier F,Neise W.Experimental study of tip clearance losses and noise in axial turbomachines and their reduction[J].Journal of Turbomachinery,1997,119(3):460-471.
[5]	März J,Hah C,Neise W.An experimental and numerical investigation into the mechanisms of rotating instability[J].Journal of Turbomachinery,2002,124(3):367-374.
[6]	Mailach R,Lehmann I,Vogeler K.Rotating instabilities in an axial compressor originating from the fluctuating blade tip vortex[J].Journal of Turbomachinery,2001,123(3):453-460.
[7]	Nishioka T,Kanno T,Hiradate K.Rotor-tip flow fields near inception point of rotating instability in an axial-flow fan[R].ASME Paper 2011-GT-45338,2011.
[8]	Hah C,Bergner J,Schiffer H P.Tip clearance vortex oscillation,vortex shedding and rotating instability in an axial transonic compressor rotor[R].ASME Paper 2008-GT-50105,2008.
[9]	Hah C,Voges M,Mueller M W,et al.Characteristics of tip clearance flow instability in a transonic compressor[R].ASME Paper 2010-GT-22101,2010.
[10]	Vo H D.Role of tip clearance flow in rotating instabilities and nonsynchronous vibrations[J].Journal of Propulsion and Power,2010,26(3):556-561.
[11]	Thomassin J,Vo H D,Mureithi N W.The tip clearance flow resonance behind axial compressor nonsynchronous vibration[J].Journal of Turbomachinery,2011,133(4):041030.1-041030.10.
[12]	Pardowitz B,Tapken U,Enghardt L.Time-resolved rotating instability waves in an annular cascade[R].AIAA 2012-2132,2012.
[13]	Zhang L Y,He L,Stüer H.A numerical investigation of rotating instability in steam turbine last stage[J].Journal of Turbomachinery,2013,135(1):011009.1-011009.9.
[14]	吴艳辉,吴俊峰,稂仿玉,等.轴流压气机转子近叶尖流动的试验和数值研究之一:准定常工况流动特征分析[J].工程热物理学报,2013,34(5):836-840. WU Yanhui,WU Junfeng,LANG Fangyu,et al.Experimental and numerical investigation of near-tip flow-field in an axial flow compressor rotor:Part Ⅰ flow characteristics at quasi-steady operating conditions[J].Journal of Engineering Thermophysics,2013,34(5):836-840.(in Chinese)
[15]	吴艳辉,吴俊峰,稂仿玉,等.轴流压气机转子近叶尖流动的试验和数值研究之二:近失速工况流动特征分析[J].工程热物理学报,2014,35(1):60-65. WU Yanhui,WU Junfeng,LANG Fangyu.Experimental and numerical investigation of near-tip flow-field in an axial flow compressor rotor:Part Ⅱ flow characteristics at near-stall operating conditions[J].Journal of Engineering Thermophysics,2014,35(1):60-65.(in Chinese)
[16]	付磊,宋西镇,袁巍,等.跨声速压气机转子叶尖非定常流场数值研究[J].航空动力学报,2013,28(12):2821-2828. FU Lei,SONG Zhenxi,YUAN Wei,et al.Numerical investigations on unsteady flow field at tip region in transonic compressor rotor[J].Journal of Aerospace Power,2013,28(12):2821-2828.(in Chinese)
[17]	付磊,袁巍,宋西镇,等.跨声速压气机转子叶尖流场旋转不稳定现象的数值研究[J].航空动力学报,2014,29(5):1145-1153. FU Lei,YUAN Wei,SONG Zhenxi,et al.Numerical investigations on rotating instability phenomenon in tip flow field of transonic compressor rotor[J].Journal of Aerospace Power,2014,29(5):1145-1153.(in Chinese)
[18]	耿少娟,张小玉,聂超群,等.轴流压气机叶顶端区流场周向传播特征及其预测[J].机械工程学报,2012,48(16):130-138. GENG Shaojuan,ZHANG Xiaoyu,NIE Chaoqun,et al.Circumferential propagation characteristics of flow field in rotor tip region and its prediction as stall precursor[J].Journal of Mechanical Engineering,2012,48(16):130-138.(in Chinese)