驻涡区进口结构参数影响TVC燃烧性能的试验
Effect of air and fuel injection patterns in pilot zone on trapped-vortex combustor performance
-
摘要: 驻涡区的空气、燃油供给位置和两者之间的匹配关系是影响驻涡燃烧室性能最重要的参数之一.研究中把4种驻涡区油气进入位置和3种掺混空气孔位置组合成7组油气参数,在不同进口温度和进口流量下开展了相应的燃烧性能试验,获得了点火性能、贫油熄火特性和燃烧效率与7组油气参数之间的关系,并分析得出了第7组组合参数是综合性能最好的驻涡区油气进口参数.Abstract: The matching relationship between locations of air and fuel injection in cavities is one of the most important parameters of trapped-vortex combustor(TVC).Researches were conducted to evaluate seven groups of air and fuel parameters covering4 injection locations in cavities and 3 mixed air hole locations.The combustion performance test was performed under different injection temperatures and flow rates.So,the relationship among ignition performance,lean blow out(LBO) and efficiency,and 7 groups of air and fuel parameters was obtained,showing that the 7th parameter is an optimal parameter of air and fuel injection in cavities.
-
[1] Hendricks R C.Experimental and computational study of trapped vortex combustor sector rig with tri-pass diffuser[R].NASA/TM-2004-212507. [2] Burrus D L,Johnson A W,Mroquemore W,et al.Performance assessment of a prototype trapped vortex combustor concept for gas turbine application[R].2001-GT-0087. [3] 何小民,姚锋.流动和油气参数对驻涡燃烧室燃烧性能的影响[J].航空动力学报,2006,21(5):810-813.HE Xiaomin,YAO Feng.Effect of flow parameters and equivalence ratio on the trapped-vortex combustor performance[J].Journal of Aerospace Power,2006,21(5):810-813. [4] Mair W A.The effect of a rear-mounted disc on the drag of a blunt-based body of revolution[J].The Aeronautical Quarterly,November 1965:350-360. [5] Little Jr.,Whipkey R R.Locked vortex afterbodies[J].Journal of Aircraft,1979,16(5):296-302. [6] Ben A,Hanson R K.Cavity flame-holders for ignition and flame stabilization in scramjets:an overview[J].Journal of Propulsion and Power,2001,17(4):275-281. [7] Hsu K Y,Gross L P.Characteristics of a trapped vortex combustor[J].Journal of Propulsion Power,1998,14(1):57-65. [8] Stone C,Menon S.Simulation of fuel-air mixing and combustion in a trapped-vortex combustor[R].AIAA 2000-0478 January 10-13,2000/Reno.NV. [9] 何小民,王家骅.驻涡火焰稳定器冷态流场特性的初步研究[J].航空动力学,2002,17(5):567-571.HE Xiaomin,WAN Jiahua.An investigation on the fluid characteristics of trapped-vortex combustor[J].Journal of Aerospace Power,2002,17(5):567-571. [10] Roquemore W M,Shouse D,Burrus D,et al.Trapped vortex combustor concept for gas turbine engines[R].AIAA 2001-0483,8-11 January 2001. -
点击查看大图
计量
- 文章访问数: 1586
- HTML浏览量: 122
- PDF量: 462
- 被引次数: 0
下载: