机匣处理改善某单级跨声轴流压气机性能的机理研究

杜辉; 滕金芳

机匣处理改善某单级跨声轴流压气机性能的机理研究

杜辉¹,
滕金芳²

1.
北京航空航天大学能源与动力工程学院,北京 100191
2.
上海交通大学航空航天学院,上海 200240

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出版历程
- 收稿日期: 2010-10-19
- 修回日期: 2011-04-11
- 刊出日期: 2011-09-28

Study on the flow mechanisms of casing treatment on a transonic single stage axial-flow compressor

DU Hui¹,
TENG Jin-fang²

1.
School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
2.
School of Aeronautics and Astronautics, Shanghai Jiaotong University, Shanghai 200240, China

摘要

摘要: 采用全三维数值方法研究了轴向倾斜缝机匣处理对某单级跨声轴流压气机性能的影响.数值结果表明:机匣处理不仅扩宽压气机稳定工作范围,而且还略微提高了单级跨声轴流压气机峰值效率.通过详细分析压气机转子内部流场,揭示了该机匣处理对该单级跨声轴流压气机性能及流场影响的机理,在倾斜缝中形成的回流作用下,使叶顶吸力面气流分离的起始位置向下游推移,并削弱了分离流与叶顶间隙泄漏流相互作用造成的恶劣影响,提高了叶顶通道的流通能力,进而推迟压气机失速的发生.
- 轴流压气机 /
- 机匣处理 /
- 压气机性能 /
- 泄漏流 /
- 流动机理
Abstract: The influences of axial skewed slot casing treatment on the performance of a transonic single stage axial-flow compressor were investigated through three-dimensional(3-D) numerical method. The numerical results indicate that the stable operating range of axial compressors is enlarged and the compressor efficiency is increased with casing treatment appreciably. The flow mechanisms of affecting compressor performance were obtained by analyzing in detail the flow-filed in compressor rotor with casing treatment. It was found that the starting location of flow separation near rotor blade suction was moved backward by the back flow formed in the slots, which weakened the adverse influence rooted in interaction of separated flow and tip leakage flow and improved the current ability of blade tip passage. So the compressor stall was suspended.
- axial-flow compressor /
- casing treatment /
- compressor performance /
- leakage flow /
- flow mechanisms

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参考文献(12)

[1]	Pundhir D S,Sharma P B.Effect of casing treatment on aerodynamic performance of a contra-rotating axial compressor stage[J].Proceedings of the Institution of Mechanical Engineers,1990,240(1):46-55.
[2]	Fujita H,Takata H.A study on configurations of casing treatment for axial flow compressors[J].Bulletin of the JSME,1984,27(230):1675-1681.
[3]	楚武利,朱俊强,刘志伟.折线斜缝式机匣处理的实验研究及机理分析[J].航空动力学报,1999,14(3):270-274. CHU Wuli,ZHU Junqiang,LIU Zhiwei.Experimental research and analysis of sloped slotted casing treatment[J].Journal of Aerospace Power,1999,14(3):270-274.(in Chinese)
[4]	李玲,于清,陆亚钧.处理机匣在单级跨声速风扇上的实验研究[J].推进技术,2000,21(3):49-52. LI Ling,YU Qing,LU Yajun.Experimental research of casing treatment on single stage transonic fan[J].Journal of Propulsion Technology,2000,21(3):49-52.(in Chinese)
[5]	Wilke I,Kau H P.A numerical investigation of the flow mechanisms in a HPC front stage with axial slots .ASME Paper,GT-2003-38481,2003.
[6]	Wilke I,Kau H P.A numerical investigation of the influence of casing treatments on the tip leakage flow in a HPC front stage .ASME Paper,GT-2002-30642,2002.
[7]	卢新根,楚武利,朱俊强,等.轴向斜缝机匣处理与转子通道之间耦合流动分析[J].工程热物理学报,2006,27(2):226-228. LU Xingen,CHU Wuli,ZHU Junqiang,et al.Analysis of the coupled flow through axial skewed slots casing treatment and rotor passage[J].Journal of Engineering Thermophysics,2006,27(2):226-228.(in Chinese)
[8]	祝剑虹,朴英,周建兴,等.跨声压气机缝式处理机匣非定常模拟研究[J].航空动力学报,2008,23(5):882-888. ZHU Jianhong,PIAO Ying,ZHOU Jianxing,et al.Unsteady numerical simulation on transonic compressor with screwed slots casing treatment[J].Journal of Aerospace Power,2008,23(5):882-888.(in Chinese)
[9]	Engel K,Zscherp C,Wolfrum N,et al.CFD simulations of the TP400 IPC with enhanced casing treatment in off- design operating conditions .ASME Paper,GT-2009- 60324,2009.
[10]	Schnell R,Voges M,Mönig R.Investigation of blade tip interaction with casing treatment in a transoniccompressor Part 2:numerical results .ASME Paper,GT-2008-50212,2008.
[11]	Emmrich R,Kunte R,Hönen H,et al.Time resolved investigation of an axial compressor with casing treatment Part 2:simulation .ASME Paper,GT-2007-27582,2007.
[12]	Hembera M,Kau H P,Johann E.Simulation of casing treatments of a transonic compressor stage[J].International Journal of Rotating Machinery,2008,2008(1):1-10.