离心压气机进口导叶尾迹的形态、输运及与叶轮流场的相互影响

陈山; 杨策; 李杜; 祁明旭; 施新

离心压气机进口导叶尾迹的形态、输运及与叶轮流场的相互影响

北京理工大学机械与车辆学院, 北京 100081

基金项目: 高等学校博士学科点专项科研基金(20091101110014)

计量
- 文章访问数: 2031
- HTML浏览量: 76
- PDF量: 13
- 被引次数: 0
出版历程
- 收稿日期: 2010-07-03
- 修回日期: 2010-12-06
- 刊出日期: 2011-07-28

IGV wake state, transportation and interaction influence with impeller blade row in centrifugal compressor

School of Mechanical Engineering, Beijing Institute of Technology,Beijing 100081,China

摘要

摘要: 采用数值模拟方法研究了跨声速离心压气机进口导叶与叶轮的静/动叶排相互影响作用,研究包括三种几何间距模型及对同一间距模型使用了两种不同的转静子交界面位置设定.计算结果表明:交界面位置的设定对混合平面法定常计算性能会产生较大影响,对非定常性能影响很小;叶排间距大小对级性能影响几乎可以忽略,但间距减小会造成流场内压力波动增大;叶轮激波使叶轮对导叶流场的影响几倍甚至十几倍大于导叶对叶轮流场的影响,且激波的影响作用使导叶压力面、吸力面侧压力波动由不同的原因造成.
- 跨声速离心压气机 /
- 进口导叶 /
- 尾迹输运 /
- 激波 /
- 相互作用
Abstract: Numerical investigation was carried out to study the inlet guide vane (IGV) and impeller interaction in a transonic centrifugal compressor.Three blade-row gaps and two rotor/stator(R/S) location settings for each gap model were included in the simulations.The results show that,the R/S location greatly affects the steady calculation performance,but has little effect on the unsteady performance.The IGV-impeller gap barely influences the compressor stage performance,but small gap leads to large pressure pulsation inside the flow field.The existence of impeller shock increases the influence of impeller to IGV several times,even dozens of times for IGV to impeller.And,the formation of pressure pulsation on the IGV pressure and suction side is different due to impeller shock.
- transonic centrifugal compressor /
- inlet guide vane /
- wake transport /
- shock /
- interaction

HTML

参考文献(12)

[1]	Krain H.A study on centrifugal impeller and diffuser flow[J].ASME Journal of Engineering for Power,1981,103(4):688-697.
[2]	Inoue M,Cumpsty N A.Experimental study of centrifugal impeller discharge flow in vaneless and vaned diffusers[J].ASME Journal of Engineering for Gas Turbines and Power,1984,106(2):455-467.
[3]	Shum Y K,Tan C S,Cumpsty N A.Impeller-diffuser interaction in centrifugal compressor[J].Journal of Turbomachinery,2000,122(4):777-786.
[4]	Ziegler K U,Gallus H E,Niehuis R.A study on impeller-diffuser interaction Part Ⅰ:influence on the performance[J].Journal of Turbomachinery,2003,125(1):173-182.
[5]	Ziegler K U,Gallus H E,Niehuis R.A study on impeller-diffuser interaction Part Ⅱ:detailed flow analysis[J].Journal of Turbomachinery,2003,125(1):183-192.
[6]	周莉,席光,蔡元虎.离心压缩机进口导叶/叶轮动静相干的数值研究[J].航空动力学报,2007,22(10):1715-1721. ZHOU Li,XI Guang,CAI Yuanhu.Numerical investigation on IGV/impeller interaction in a centrifugal compressor stage[J].Journal of Aerospace Power,2007,22(10):1715-1721.(in Chinese)
[7]	Gorrell S E,Copenhaver W W,Chriss R M.Upstream wake influences on the measured performance of a transonic compressor stage[J].Journal of Propulsion and Power,2001,17(1):43-48.
[8]	Cousins W T.The dynamics of stall and surge behavior in axial-centrifugal comprssors .Virginia:Virginia Polytechnic Institute and State University,1997.
[9]	Rodgers C.Centrifugal compressor inlet guide vanes for increased surge margin[J].Journal of Turbomachinery,1991,113(4):696-702.
[10]	Eisenlohr G,Krain H,Richter F A,et al.Investigations of the flow through a high pressure ratio centrifugal impeller .ASME Paper GT2002-30394,2002.
[11]	康顺,刘强,祁明旭.一个高压比离心叶轮的CFD结果确认[J].工程热物理学报,2005,26(3):400-404. KANG Shun,LIU Qiang,QI Mingxu.CFD Validation of a high speed centrifugal compressor impeller[J].Journal of Engineering Thermophysics,2005,26(3):400-404.(in Chinese)
[12]	Gorrell S E,Okiishi T H,Copenhaver W W.Stator-rotor interactions in a transonic compressor Part 2:description of a loss-producing mechanism[J].Journal of Turbomachinery,2003,125(2):336-345.