Experimental Investigation of Abrupt Change in a Scramjet with Variable Mach-Number Flow

doi:10.2514/1.J061287

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

	Experimental Investigation of Abrupt Change in a Scramjet with Variable Mach-Number Flow
	Wu, Zhenjie 1,2; Zhang, Qifan 2; Zhang, Xu 2; Luo, Weihang 2; Gao, Zhanbiao 2; Yue, Lianjie 1,2
刊名	AIAA JOURNAL
	2022-05-30
页码	9
ISSN号	0001-1452
DOI	10.2514/1.J061287
通讯作者	Zhang, Qifan(zhangqifan@imech.ac.cn)
英文摘要	To study an abrupt phenomenon of a scramjet in the Mach-number variation process, a scramjet model was tested in the simulated acceleration and deceleration conditions between the flight Mach numbers of 5.0 and 6.0. The results showed that once the flame stabilization changes, the pressure and thrust will meet the abrupt change simultaneously, while three typical flame stabilization and two types of transformation processes were found. One is the switching between the jet-wake flame and the cavity shear-layer flame directly, accompanied by one abrupt change. The other is the switching of the first two flame stabilizations, combined with the cavity shear-layer/recirculation flame, accompanied by two abrupt changes. The reduction in the range of the equivalence ratio and the process of increasing the Mach number will promote the appearance of the second type with two abrupt changes, and the process of increasing equivalence ratio and decreasing Mach number makes the first type with only one abrupt change more likely to occur. In other words, the characteristics of the abrupt change during the flame stabilization transition process are determined by the combined effect of the changing paths of the incoming flow condition and the equivalence ratio. The actual process of Mach- number variation has an obvious historical effect on the flame stabilization transition.
资助项目	National Natural Science Foundation of China[U2141220] ; National Natural Science Foundation of China[11902325] ; National Natural Science Foundation of China[11672309]
WOS关键词	COMBUSTION-MODE TRANSITION ; CAVITY-STABILIZED FLAMES ; SUPERSONIC COMBUSTOR ; PERFORMANCE ; FLAMEHOLDER ; HYDROGEN ; FUEL ; DESIGN ; JETS
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:000803042700001
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89549]
专题	力学研究所_高温气体动力学国家重点实验室
通讯作者	Zhang, Qifan
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wu, Zhenjie,Zhang, Qifan,Zhang, Xu,et al. Experimental Investigation of Abrupt Change in a Scramjet with Variable Mach-Number Flow[J]. AIAA JOURNAL,2022:9.
APA	Wu, Zhenjie,Zhang, Qifan,Zhang, Xu,Luo, Weihang,Gao, Zhanbiao,&Yue, Lianjie.(2022).Experimental Investigation of Abrupt Change in a Scramjet with Variable Mach-Number Flow.AIAA JOURNAL,9.
MLA	Wu, Zhenjie,et al."Experimental Investigation of Abrupt Change in a Scramjet with Variable Mach-Number Flow".AIAA JOURNAL (2022):9.