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Influence of multi-source vortex structure on the mixing of fuel/air

  • Yufang Zhang*
  • , Yong Huang
  • , Fang Wang
  • , Yangzeng Wu
  • , Ying Xiao
  • *此作品的通讯作者
  • Beihang University
  • Naval Academy of Armament

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

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 structure on the mixing enhancement of fuel/air was studied. The total temperature of the air inlet was 294.3K, ethane (C 2H 6) was used as the fuel and the total equivalence ratio was 0.6. The results indicated that a pair of small scale counter-rotating streamwise vortices was produced downstreams of each tab which enhanced the local mixing between fuel and air. For combustor with MSV, the distribution of fuel concentration was much more uniform than that without MSV. The mixing non-uniformity was decreased remarkably from 13.0% for a combustor without MSV to less than 7.6% with MSV. If the total blockage ratio was unchanged and two tabs were fixed on each swirl vane, the mixing non-uniformity would reach the smallest value and the mixing would be the best. If the number and shape of tabs were unchanged and the total blockage ratio of tabs was increased from 2.64% to 5.28%, the mixing non-uniformity would decrease from 7.6% to 6.5%, indicating a mixing enhancement of fuel/air.

源语言英语
主期刊名2010 Asia-Pacific Power and Energy Engineering Conference, APPEEC 2010 - Proceedings
DOI
出版状态已出版 - 2010
活动Asia-Pacific Power and Energy Engineering Conference, APPEEC 2010 - Chengdu, 中国
期限: 28 3月 201031 3月 2010

出版系列

姓名Asia-Pacific Power and Energy Engineering Conference, APPEEC
ISSN(印刷版)2157-4839
ISSN(电子版)2157-4847

会议

会议Asia-Pacific Power and Energy Engineering Conference, APPEEC 2010
国家/地区中国
Chengdu
时期28/03/1031/03/10

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