Dynamics character of swirling flame investigated by OH and CH2O planar laser-induced fluorescence

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Dynamics character of swirling flame investigated by OH and CH2O planar laser-induced fluorescence
	Yan H(严浩); Zhang SH(张少华); 余西龙 Yu, Xilong
	2019
会议日期	NOV 11-13, 2018
会议地点	Changsha, PEOPLES R CHINA
关键词	laser induced fluorescence swirling flame OH CH2O proper orthogonal decomposition
页码	110460Q
英文摘要	The model combustor of aircraft engine under fuel-lean condition is characterized by planar laser-induced fluorescence (PLIF) technique. By imaging the fluorescence from OH and CH2O simultaneously under various operation points, the transient structures of the reaction zone and preheat zone have been investigated. By the application of proper orthogonal decomposition (POD) and extended POD (EPOD) methods to the OH PLIF and CH2O PLIF data, the main dynamics modes of the swirling flame are extracted, as well as the CH2O PLIF signal distribution for each POD mode. The experimental results indicate that as the thermal power of the combustor increases, the time-averaged structure and dynamics modes experience notable transitions. At relatively high flow rate, local extinction occurs and unburnt fuel emerges in the external recirculation zone (ERZ).
会议录	FIFTH INTERNATIONAL SYMPOSIUM ON LASER INTERACTION WITH MATTER
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China [11672359]
语种	英语
ISBN号	978-1-5106-2759-8
WOS记录号	WOS:000470011400025
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/80463]
专题	力学研究所_高温气体动力学国家重点实验室
作者单位	1.Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Inst Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yan H,Zhang SH,余西龙 Yu, Xilong. Dynamics character of swirling flame investigated by OH and CH2O planar laser-induced fluorescence[C]. 见:. Changsha, PEOPLES R CHINA. NOV 11-13, 2018.