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); Sung CJ
刊名	Proceedings of the Combustion Institute
	2005
通讯作者邮箱	yugong@imech.ac.cn
ISSN号	0082-0784
通讯作者	Yu, G (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China.
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 and different integrated fuel injector/flameholder cavity modules. Experiments with pure liquid atomization and with effervescent atomization were characterized and compared. Direct photography, Schlieren imaging, and planar laser induced fluorescence (PLIF) imaging of OH radical were utilized to examine the cavity characteristics and spray structure. 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. Under the same operation conditions, comparison of the measured static pressure distributions along the combustor also shows that effervescent atomization generally leads to better combustion performance than the use of pure liquid atomization. Furthermore, the present results 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.
学科主题	力学
类目[WOS]	Thermodynamics ; Energy & Fuels ; Engineering, Chemical ; Engineering, Mechanical
研究领域[WOS]	Thermodynamics ; Energy & Fuels ; Engineering
关键词[WOS]	FLAME STABILIZATION ; SCRAMJET ENGINES ; INJECTION
收录类别	SCI
语种	英语
WOS记录号	WOS:000229944300130
公开日期	2007-06-15 ; 2007-12-05 ; 2009-06-23
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/16778]
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[J]. Proceedings of the Combustion Institute,2005.
APA	俞刚,李建国,赵建荣,岳连捷,张新宇,&Sung CJ.(2005).An Experimental Study of Kerosene Combustion in a Supersonic Model Combustor Using Effervescent Atomization.Proceedings of the Combustion Institute.
MLA	俞刚,et al."An Experimental Study of Kerosene Combustion in a Supersonic Model Combustor Using Effervescent Atomization".Proceedings of the Combustion Institute (2005).