Small scale mixing enhancement of fuel/air using multi-source vortex technology

ZHANG Yu-fang; HUANG Yong; WANG Fang; WU Yao-zeng; XIAO Ying

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Small scale mixing enhancement of fuel/air using multi-source vortex technology

更新时间：2026-07-07

- Small scale mixing enhancement of fuel/air using multi-source vortex technology
- Vol. 25, Issue 7, (2010)
- 作者机构：
  
  1. 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科技重点实验室,北京,100191
  2. 海军装备研究院自动化所,北京,100073
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010
- 稿件说明：
移动端阅览
ZHANG Yu-fang, HUANG Yong, WANG Fang, et al. Small scale mixing enhancement of fuel/air using multi-source vortex technology[J]. 2010, 25(7).
DOI：

ZHANG Yu-fang, HUANG Yong, WANG Fang, et al. Small scale mixing enhancement of fuel/air using multi-source vortex technology[J]. 2010, 25(7). DOI：

摘要

通过数值模拟

研究了在空气入口总温为294.28 K

燃料气体为乙烷(C2H6)时在轴向旋流器出口截面上安装多个小突片的多源涡(MSV)结构对燃烧室内燃料/空气掺混效果的影响.结果表明:在每个小突片下游产生的小尺度流向涡使得局部的燃料/空气掺混加强;装有多源涡结构的燃烧室内对应的C2H6质量分数在文氏管下游2 mm截面上的混合不均匀度由不带多源涡结构时的13.0%下降到小于7.4%.在该研究的范围内

当小突片总的阻塞比增大时

对应的混合不均匀度减小

掺混效果变好.

Abstract

With the multi-source vortex(MSV) structure fixed on the exit plane of axial swirler

the flow field of combustor was simulated and the effect of MSV on the mixing enhancement of fuel/air was studied.The total temperature of the air inlet was 294.28K and the fuel was ethane(C2H6).The results indicate that

a small scale streamwise vortex is produced downstream each tab

helping enhance the local mixing of fuel and air.The mixing non-uniformity is 13.0% for combustor without MSV

while it declines to smaller than 7.4% with MSV.The mixing non-uniformity decreases when the total blockage of tabs increases

indicating a mixing enhancement of fuel/air.

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