外旋流器旋流数对三级旋流流场特性的影响

赵自强; 何小民; 丁国玉; 江平; 李明玉; 黄卫东; 赵玉玲

doi:10.13224/j.cnki.jasp.2017.02.007

外旋流器旋流数对三级旋流流场特性的影响

doi: 10.13224/j.cnki.jasp.2017.02.007

1.
南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室,南京 210016
2.
南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室,南京 210016；先进航空发动机协同创新中心，北京 100191

基金项目: 江苏省研究生培养创新工程(KYLX_0308)

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出版历程
- 收稿日期: 2015-06-03
- 刊出日期: 2017-02-28

Effects of outer swirl number on flow characteristics of tripleswirlers

摘要

摘要: 采用二维粒子图像测速(2D-PIV)流场测试技术,试验研究了相同进口条件下多种旋流数组合旋流器出口冷态流场,分析比较了外级旋流器旋流数对流场结构的影响.研究结果表明：外级旋流器旋流强弱并不是回流区形成的主要决定因素；随着外级旋流器旋流数的增加,涡心有向前及向外移动的趋势,其回流区轴向长度逐渐变长,最大回流速度逐渐减小；回流区形状同时受外级旋流器旋流数及内级旋流器旋流数的影响,当外级旋流器旋流数相对内级旋流器旋流数足够大时,较易出现尾迹区；在旋流器出口附近,外级旋流器旋流数较小时旋流器组合流场的湍流强度峰值较大.
- 旋流数 /
- 外级旋流器 /
- 三级旋流器 /
- 湍流强度 /
- 回流区
Abstract: The twodimensionalparticle image velocimetry (2D-PIV) planar structure was utilized to measure the flow field of different tripleswirlers under the same inlet condition, helping to analyze the effects of outer swirl number on flow characteristics. The experimental results show that: the swirl intensity of outer swirler is not the critical factor for the formation of central toroidal recirculation zone (CTRZ); the increment of CTRZ length, recirculated mass flowrate ratio, and the decrement of maximum recirculated velocity correspond to the increment of outer swirl number, as the cores of the vortexes move upward and outward; the shape of CTRZ is affected by both outer and inner swirl numbers, and an obvious CTRZ tail can be obtained for swirler with higher outer swirl number; a higher turbulence intensity of the flow generated by tripleswirlers with lower outer swirl number occurs near the swirler exit.
- swirl number /
- outer swirler /
- triple-swirlers /
- turbulence intensity /
- central toroidal recirculation zone(CTRZ)

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参考文献(23)

[1]	Mongia H C.TAPS A 4th generation propulsion combustor technology for low emissions［R］.AIAA-2003-2657,2003.
[2]	Lazik W,Doerr T,Bake S.Low NOx combustor development for the engine 3E core engine demonstrator［R］.ISABE 2007-1190,2007.
[3]	Experimental investigation on ignition performance of LESS combustor［R］.ASME Paper 2011-GT-45786,2011.
[4]	Liu F Q,Mua Y,Liu C X,et al.Effect of fuel staged proportion in NOx emission performance of centrally staged combustor［R］.ASME Paper 2013-GT-94299,2013.
[5]	Mongia H C.Engineering aspects of complex gas turbine combustion mixers:PartⅠhigh △T［R］.AIAA-2011-107,2011.
[6]	袁怡祥,林宇震,刘高恩.旋流杯燃烧室头部流场与喷雾对贫油熄火的影响［J］.航空动力学报,2004,19(3):332-336. YUAN Yixiang,LIN Yuzhen,LIU Gaoen.The effect of flow field and fuel spray of combustor with swirl cup on lean blowout limit at idle condition［J］.Journal of Aerospace Power,2004,19(3):332-336.(in Chinese)
[7]	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):142-147. YUAN Yixiang,LIN Yuzhen,LIU Gaoen.Combustor dome design with three swirlers for widening the operation stability range［J］.Journal of Aerospace Power,2004,19(1):142-147.(in Chinese)
[8]	DING Guoyu,HE Xiaomin,ZHAO Ziqiang,et al.Effect of dilution holes on the performance of a triple swirler combustor［J］.Chinese Journal of Aeronautics,2014,27(6):1421-1429.
[9]	丁国玉,何小民,赵自强,等.三级轴向旋流器影响燃烧室性能的试验［J］.航空动力学报,2015,30(3):686-693. DING Guoyu,HE Xiaomin,ZHAO Ziqiang,et al.Experiment on effect of triple axial swirler on combustor performance［J］.Journal of Aerospace Power,2015,30(3):686-693.(in Chinese)
[10]	Yamamoto T,Shimodaira K,et al.Research and development of staging fuel nozzle for aeroengine［R］.ASME Paper 2009-GT-59852,2009.
[11]	颜应文,李红红,赵坚行,等.双环预混旋流低污染燃烧室数值模拟［J］.航空动力学报,2009,24(9):1923-1929. YAN Yingwen,LI Honghong,ZHAO Jianxing,et al.Numerical study of low emissions for twin annular premixing swirler combustor［J］.Journal of Aerospace Power,2009,24(9):1923-1929.(in Chinese)
[12]	刘殿春,董玉玺,尚守堂.单环腔中心分级燃烧室流场数值模拟［J］.航空动力学报,2010,25(6):1251-1257. LIU Dianchun,DONG Yuxi,SHANG Shoutang,et al.Numerical simulation of the flow field in a single annular concentric staged combustor［J］.Journal of Aerospace Power,2010,25(6):1251-1257.(in Chinese)
[13]	吴治永,林宇震,刘高恩,等.基于CFD分析改进三旋流燃烧室头部设计［J］.推进技术,2009,30(5):533-537. WU Zhiyong,LIN Yuzhen,LIU Gaoen,et al.Dome structure modification of a high temperature rise combustor based on CFD simulation［J］.Journal of Propulsion Technology,2009,30(5):533-537.(in Chinese)
[14]	Dhanuka S K,Driscoll J F,Mongia H C.Instantaneous flow structures in a reacting gas turbine combustor［R］.AIAA-2008-4683,2008.
[15]	Dhanuka S K,Temme J E,Driscoll J F.Unsteady aspects of lean premixedprevaporized (LPP) gas turbine combustor:flameflame interactions［R］.AIAA-2010-1148,2010.
[16]	吴振宇,王成军,王丹丹.三级旋流器的设计及其流场模拟［J］.沈阳航空工业学院学报,2010,27(5):38-41. WU Zhenyu,WANG Chengjun,WANG Dandan.Triple swirler design and fluid numerical simulation［J］.Journal of Shenyang Institude of Aeronautical Engineering,2010,27(5):38-41.(in Chinese)
[17]	Li G Q,Gutmark E J.Flow field measurement of triple swirler spray combustor［R］.AIAA-2002-4010,2002.
[18]	Li G Q,Angier S,Lambolez O,et al.Experimental study of velocity flow field for a multiple swirl spray combustor［R］.AIAA-2002-0618,2002.
[19]	Li G Q,Gutmark E J.Experimental and numerical studies of the velocity field of a triple annular swirler［R］.ASME Paper GT-2002-30069,2002.
[20]	Li G Q,Gutmark E J.Combustion characteristics of a multiple swirl spray combustor［R］.AIAA-2003-0489,2003.
[21]	齐海帆.燃烧室头部设计对燃烧室性能影响研究［D］.南京:南京航空航天大学,2012. QI Haifan.Research on the influence of combustor dome design on the combustion performance［D］.Nanjing:Nanjing University of Aeronautics and Astronautics,2012.(in Chinese)
[22]	黄勇.燃烧与燃烧室［M］.北京:北京航空航天出版社,2009.
[23]	Krause E.A contribution to the problem of vortex breakdown［J］.Computers and Fluids,1985,13(3):375-381.