An Experimental Study of Kerosene Combustion in a Supersonic Model Combustor Using Effervescent Atomization

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	An Experimental Study of Kerosene Combustion in a Supersonic Model Combustor Using Effervescent Atomization
	Yu G(俞刚); Li JG(李建国); Zhao JR(赵建荣); Yue LJ(岳连捷); Zhang XY(张新宇); Song ZR(宋知人)
	2004-07-25
会议名称	30th International Symposium on Combustion, JUL 25-30, 2004 Univ Illinois Chicago, Chicago, IL
卷号	30
期号	2
页码	2859-2866
通讯作者	俞刚
中文摘要	Investigation of kerosene combustion in a Mach 2.5 flow was carried out using a model supersonic combustor with cross-section area of 51 mm?70 mm, with special emphases on the characterization of effervescent atomization and the flameholdering mechanism using different integrated fuel injector/flameholder cavity modules. Direct photography, Schlieren imaging, and Planar Laser Induced Fluorescence (PLIF) imaging of OH were utilized to examine the cavity characteristics and spray structure, with and without gas barbotage. Schlieren images illustrate the effectiveness of gas barbotage in facilitating atomization and the importance of secondary atomization when kerosene sprays interacting with a supersonic crossflow. OH-PLIF images further substantiate our previous finding that there exists a local high temperature radical pool within the cavity flameholder and this radical pool plays a crucial role in promoting kerosene combustion in a supersonic combustor. The present results also demonstrate that the cavity characteristics can be different in non-reacting and reacting supersonic flows. As such, the conventional definition of cavity characteristics based on non-reacting flows needs to be revised.
收录类别	CPCI-S
会议录	Proceedings of the Combustion Institute
学科主题	力学
语种	英语
WOS记录号	WOS:000229944300130
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/13934]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Yu G,Li JG,Zhao JR,et al. An Experimental Study of Kerosene Combustion in a Supersonic Model Combustor Using Effervescent Atomization[C]. 见:30th International Symposium on Combustion, JUL 25-30, 2004 Univ Illinois Chicago, Chicago, IL.