第2级径向旋流器旋流数对燃烧室点火和贫油熄火性能的影响

代威; 林宇震; 张弛

doi:10.13224/j.cnki.jasp.2015.05.009

第2级径向旋流器旋流数对燃烧室点火和贫油熄火性能的影响

doi: 10.13224/j.cnki.jasp.2015.05.009

北京航空航天大学能源与动力工程学院航空发动机气动热力国家级重点实验室, 北京 100191

详细信息

作者简介:
代威(1987-),男,辽宁丹东人,博士生,主要从事航空发动机燃烧室研究.

中图分类号: V231.2
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出版历程
- 收稿日期: 2013-11-27
- 刊出日期: 2015-05-28

Effects of swirl number of second stage radial swirler on combustor ignition and lean blow-out performances

National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics, School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 双级旋流器是航空发动机燃烧室头部产生回流区所采用的主要形式,研究主要考察第2级径向旋流器的旋流数对点火与燃烧稳定性能的影响,数值模拟结果能够较好地匹配第2级径向旋流器设计参数.试验研究表明:第2级径向旋流器旋流数的改变对燃烧室点火性能无影响;但减小该旋流数会对贫油熄火性能产生明显地改善,旋流卷吸效果会影响回流区火焰稳定.减小第2级径向旋流器旋流数,使下游卷吸量增加,回流区流动与火焰匹配更好,更有利于燃烧稳定性的提高.
- 燃烧室 /
- 径向旋流器 /
- 旋流数 /
- 点火性能 /
- 贫油熄火
Abstract: Twin-swirler is used as a major form in aero-engine combustor dome to make a recirculation zone. The effects of the swirl number of the second stage radial swirler on ignition and combustion stability performance were mainly studied. The numerical simulation results were validated well with the design parameters of the second stage radial swirler. Experimental studies show that the swirl number of the second stage radial swirler has no effect on the combustor ignition performance. However, the decrease of this swirl number will obviously improve the lean blow-out performance. The entrainment effect of swirl would impact the flame stabilization in the recirculation zone. Decreasing swirl number of the second stage radial swirler can increase the downstream entrainment and optimize the matching between the flow and flame in the recirculation zone, and this is more beneficial to improve the combustion stability.
- combustor /
- radial swirler /
- swirl number /
- ignition /
- lean blow-out

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参考文献(19)

[1]	黄勇, 林宇震, 樊未军, 等.燃烧与燃烧室[M].北京:北京航空航天大学出版社, 2009.
[2]	林宇震, 许全宏, 刘高恩.燃气轮机燃烧室[M].北京:国防工业出版社, 2008.
[3]	廉筱纯, 吴虎.航空发动机原理[M].西安:西北工业大学出版社, 2005.
[4]	胡正义, 江义军, 赵清杰, 等.航空发动机设计手册:第9分册主燃烧室[M].北京:航空工业出版社, 2000.
[5]	方昌德.世界航空发动机手册[M].北京:航空工业出版社, 1996.
[6]	Fu Y, Cai J, Elkady A M, et al.Fuel and equivalence ratio effects on spray combustion of a counter-rotating swirler[R].AIAA-2005-0354, 2005.
[7]	EL-Kady A M, Jeng S M, Mongia H C.Experimental investigation of temperature and species concentration characteristics of swirling spray combustion[R].AIAA-2005-1425, 2005.
[8]	焦树建.径向旋流器的设计方法及其燃烧特性[J].燃气轮机技术, 1994, 12(4):33-42. JIAO Shujian.Design method and combustion characteristic of radial swirler[J].Gas Turbine Technology, 1994, 12(4):33-42.(in Chinese)
[9]	郭新华, 林宇震, 张驰, 等.离心式同向双旋流器空气雾化喷嘴雾化特性研究[J].航空动力学报, 2009, 24(10):2249-2254. GUO Xinhua, LIN Yuzhen, ZHANG Chi, et al.Experiment investigation on atomization characteristic of an air-blast atomizer with centrifugal nozzle and co-dual-swirl cup[J].Journal of Aerospace Power, 2009, 24(10):2249-2254.(in Chinese)
[10]	张弛, 张荣伟, 徐国强, 等.直射式双旋流空气雾化喷嘴的雾化效果[J].航空动力学报, 2006, 21(5):805-809. ZHANG Chi, ZHANG Rongwei, XU Guoqiang, et al.Experimental investigation on atomization of an air-blast atomizer with plain-orifice nozzle and dual-swirl cup[J].Journal of Aerospace Power, 2006, 21(5):805-809.(in Chinese)
[11]	党新宪, 赵坚行, 吉洪湖.试验研究双旋流器头部燃烧室几何参数对燃烧性能影响[J].航空动力学报, 2007, 22(10):1639-1645. DANG Xinxian, ZHAO Jianxing, JI Honghu.Experimental study of effects of geometric parameters on combustion performance of dual-stage swirler combustor[J].Journal of Aerospace Power, 2007, 22(10):1639-1645.(in Chinese)
[12]	彭云晖, 林宇震, 许全宏, 等.双旋流空气雾化喷嘴喷雾、流动和燃烧性能[J].航空学报, 2008, 29(1):1-14. PENG Yunhui, LIN Yuzhen, XU Quanhong, et al.Atomization, aerodynamics and combustion performance of swirl cup[J].Acta Aeronautica et Astronautica Sinica, 2008, 29(1):1-14.(in Chinese)
[13]	林宇震, 刘高恩, 许全宏.未来航空燃气轮机燃烧室关键技术探讨[R].北京:中国航空学会航空百年学术论坛, 2003.
[14]	Lefebvre A H, Ballal D R.Gas turbine combustion[M].London:Taylor and Francis Press, 1999.
[15]	Liao Y.On the mechanism of pressure-swirl airblast atomization[R].AIAA-2001-3571, 2001.
[16]	Hsiao G, Mongia H, Vij A.Swirl cup modeling:Part Ⅱ inlet boundary conditions[R].AIAA-2003-1350, 2003.
[17]	Hsiao G, Mongia H.Swirl cup modeling:Part Ⅲ grid independent solution with different turbulence models[R].AIAA-2003-1349, 2003.
[18]	Cai J, Fu Y, Elkady A, et al.Swirl cup modeling:Part Ⅳ effect of confinement on flow characteristics[R].AIAA-2003-0486, 2003.
[19]	Giridharan M G, Mongia H C, Jeng S M.Swirl cup modeling:Part Ⅷ spray combustion in CFM-56 single cup flame tube[R].AIAA-2003-0319, 2003.