试验研究双旋流器头部燃烧室几何参数对燃烧性能影响
Experimental study of effects of geometric parameters on combustion performance of dual-stage swirler combustor
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摘要: 试验研究不同油气比下双级旋流器的几何参数以及主燃孔布局变化,对单头部试验燃烧室出口温度分布、燃烧效率、贫油熄火极限以及污染物排放等燃烧性能的影响规律.试验结果表明:双级旋流器的几何参数(如:叶片安装角、旋流器流通面积和喉道距文氏管出口距离等)与主燃孔布局变化对燃烧室性能都有较大的影响,但随着油气比的下降,影响程度相应地减弱.Abstract: Under different fuel-air ratios, the effects of geometric parameters of dual-stage swirler and the arrangement of primary holes, on combustion performance(exit temperature distribution, combustion efficiency, lean blowout limit and pollutant emission) of single-head rectangle combustor are studied experimentally.The experimental results show that, the geometric parameters of dual-stage swirler and the arrangement of primary holes(swirler passage area, swirl vane angle of the primary and secondary swirler, the distance of the flare exit from throat, etc) have great influence upon the combustion performance of combustor, but the effects decrease with the reduction of fuel-air ratio.
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Key words:
- aerospace propulsion system /
- combustion /
- dual-stage swirler /
- combustor /
- combustion performance
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[1] Mehta J M,Shin H W,Wisler D C.Mean velocity and turbulent flow-field characteristics inside an advanced combustor swirl cup[R].AIAA-89-0215,1989. [2] 林宇震,刘高恩,王华芳.反向与同向双旋流器流场的试验研究[J].航空动力学报,1995,10(4):108-110.LIN Yuzhen,LIU Gaoen,WANG Huafang.Experimental study of the opposite and same dual-stage swirler flow distribution[J].Journal of Aerospace power,1995,10(4):108-110. [3] 徐华胜,黄义勇,王秀兰.喷嘴供油特性对双旋流器头部气动雾化效果的影响研究[J].燃气涡轮试验与研究,2004,17(2):17-20.XU Huashen,HUANG Yiyong,WANG Xiulan.Study of the effect of fual jet characteristics on airblast atomization performance for device with dual-stage swirler[J].China Gas Turbine Experiment and Research,2004,17(2):17-20. [4] Grinstein F F,Young T R,Li G.Computational and experimental analysis of the flow dynamics in a multi-swirler combustor[R].AIAA 2002-1006,2002. [5] 袁怡祥,林宇震,刘高恩.三旋流器头部燃烧室拓宽燃烧稳定工作范围的研究[J].航空动力学报,2004,19(1):143-148.YUAN Yixiang,LIN Yuzheng,LIU Gaoen.Study the extension of the triple-stage swirler combustor domes stabilization operation field[J].Journal of Aerospace power,2004,19(1):143-148. [6] 党新宪.单头部双旋流器环形燃烧室性能实验研究和数值模拟[D].南京:南京航空航天大学,2006.
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