CLC number:
On-line Access: 2022-05-23
Received: 2020-12-25
Revision Accepted: 2021-05-06
Crosschecked: 2022-05-23
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Dong-peng JIA, Kai YANG, Yu PAN, Xi-peng LI, Ning WANG. Effect of the micro vortex generator on the characteristics of vaporized RP-3 kerosene combustion in supersonic flows[J]. Journal of Zhejiang University Science A,in press.Frontiers of Information Technology & Electronic Engineering,in press.https://doi.org/10.1631/jzus.A2000620 @article{title="Effect of the micro vortex generator on the characteristics of vaporized RP-3 kerosene combustion in supersonic flows", %0 Journal Article TY - JOUR
微型涡流发生器对超声速气流中气化RP-3煤油燃烧特性的影响机构:国防科技大学,空天科学学院,高超声速冲压发动机技术重点实验室,中国长沙,410073 目的:研究微型涡流发生器(MVG)对超燃冲压发动机燃烧室中气化RP-3煤油燃烧的增强作用。 创新点:1.实验研究了微型涡流发生器对超声速气流中气化煤油燃烧的增强作用;2.分析了微型涡流发生器布置位置和数量的影响。 方法:1.在超燃冲压发动机直连式测试平台上进行气化RP-3煤油燃烧的实验研究;2.比较喷注位置下游有无微型涡流发生器时点火过程和凹腔稳焰的区别,验证微型涡流发生器对燃烧的促进作用;3.探讨微型涡流发生器位置和数量的影响。 结论:1.有无涡流发生器对点火过程影响较小,但微型涡流发生器能够在火焰稳定后促进燃烧;微型涡流发生器可以提升剪切层,使火焰区域更深入主流。2.缩短微型涡流发生器与喷注位置之间的距离有利于促进燃料与空气的预混程度,能够促进燃料的混合和随后的燃烧效果;本文中缩短两者之间的距离能够将光强提升15.6%;微型涡流发生器的位置主要影响喷注位置和凹腔之间的室压,而对凹腔附近室压影响很小。3.增加微型涡流发生器的数量对燃烧前燃料与空气的预混效果有促进作用,使下游的化学反应更加剧烈;然而,微型涡流发生器的位置对燃烧性能的影响可能更大。 关键词组: Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article
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