Experimental study on lean-blow-out of double/fuel-lean trapped vortex combustor

ZHANG Tao; SONG Shuang-wen; FAN Wei-jun; ZHANG Rong-chun

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Experimental study on lean-blow-out of double/fuel-lean trapped vortex combustor

更新时间：2026-07-07

- Experimental study on lean-blow-out of double/fuel-lean trapped vortex combustor
- Vol. 26, Issue 6, (2011)
- 作者机构：
  
  1. 北京航空航天大学能源与动力工程学院,北京,100191
  2. 中国航空工业集团公司中国航空动力机械研究所,湖南,株洲,412002
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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ZHANG Tao, SONG Shuang-wen, FAN Wei-jun, et al. Experimental study on lean-blow-out of double/fuel-lean trapped vortex combustor[J]. 2011, 26(6).
DOI：

ZHANG Tao, SONG Shuang-wen, FAN Wei-jun, et al. Experimental study on lean-blow-out of double/fuel-lean trapped vortex combustor[J]. 2011, 26(6). DOI：

摘要

对在燃烧室进口高速气流条件下工作的贫油双涡结构驻涡燃烧室

通过改变主流马赫数与温度和改变其凹腔几何尺寸进行贫油熄火性能试验.试验结果表明:①随着主流马赫数的增加

贫油熄火余气系数减小

主流速度是影响贫油熄火性能的最主要因素.②主流温度的升高对拓宽燃烧边界有利

但是在达到600K后

对贫油熄火余气系数的影响逐渐减弱.③双涡试验件后体进气量的增加可以使贫油熄火性能变差.④不同凹腔宽深比对贫油熄火余气系数的影响很大

综合各个试验件结果

深宽比为0.88的双涡试验件的贫油熄火性能最好.

Abstract

To investigate lean-blow-out (LBO) performance of trapped vortex combustor (TVC) in high inlet flow

experiments were employed by changing Ma and temperature of main air and height to length (H/L) of the cavity.The results of experiments show that:(1) Mach number of main air has great effect on LBO.When Mach number of inlet main air becomes bigger

LBO decreases.As Mach number of inlet conditions varies

the change of LBO is great.(2) Temperature rise of main air is conducive to LBO

but after 600K

the effect is less.(3) LBO decreases when after body of cavity gas amount becomes bigger.(4) When the H/L is 0.88

the best LBO is achieved.

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