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

doi:10.2514/1.J061287

	Experimental Investigation of Abrupt Change in a Scramjet with Variable Mach-Number Flow
	Wu ZJ(吴振杰)1,2; Zhang QF(张启帆)1 ; Zhang X(张旭)1; Luo WH(罗苇航)1; Gao ZB(高占彪)1 ; Yue LJ(岳连捷)1,2
通讯作者	Zhang, Qifan(zhangqifan@imech.ac.cn)
发表期刊	AIAA JOURNAL
	2022-05-30
页码	9
ISSN	0001-1452
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.
DOI	10.2514/1.J061287
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000803042700001
关键词[WOS]	COMBUSTION-MODE TRANSITION ; CAVITY-STABILIZED FLAMES ; SUPERSONIC COMBUSTOR ; PERFORMANCE ; FLAMEHOLDER ; HYDROGEN ; FUEL ; DESIGN ; JETS
WOS研究方向	Engineering
WOS类目	Engineering, Aerospace
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]
项目资助者	National Natural Science Foundation of China
论文分区	一类/力学重要期刊
力学所作者排名	1
RpAuthor	Zhang, Qifan
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/89550
专题	高温气体动力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wu ZJ,Zhang QF,Zhang X,et al. Experimental Investigation of Abrupt Change in a Scramjet with Variable Mach-Number Flow[J]. AIAA JOURNAL,2022:9.
APA	吴振杰,张启帆,张旭,罗苇航,高占彪,&岳连捷.(2022).Experimental Investigation of Abrupt Change in a Scramjet with Variable Mach-Number Flow.AIAA JOURNAL,9.
MLA	吴振杰,et al."Experimental Investigation of Abrupt Change in a Scramjet with Variable Mach-Number Flow".AIAA JOURNAL (2022):9.

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