Supersonic Combustion Mode Analysis of a Cavity Based Scramjet

doi:10.3390/aerospace9120826

	Supersonic Combustion Mode Analysis of a Cavity Based Scramjet
	Meng, Yu1 ; Sun WM(孙文明); Gu HB(顾洪斌); Chen, Fang; Zhou RX(周芮旭)
发表期刊	AEROSPACE
	2022-12
卷号	9 期号:12 页码:826
摘要	Since flame stability is the key to the performance of scramjets, scramjet combustion mode and instability characteristics were investigated by using the POD method based on a cavity stabilized scramjet. Experiments were developed on a directly connected scramjet model that had an inlet flow of Mach 2.5 with a cavity stabilizer. CH* chemiluminescence, schlieren, and a wall static pressure sensor were employed to observe flow and combustion behavior. Three typical combustion modes were classified by distinguishing averaged CH* chemiluminescence images of three ethylene fuel jet equivalence ratios. The formation reason was explained using schlieren images and pressure characteristics. POD modes (PDMs) were determined using the proper orthogonal decomposition (POD) of sequential flame CH* chemiluminescence images. The PSD (power spectral density) of the PDM spectra showed large peaks in a frequency range of 100 600 Hz for three typical stabilized combustion modes. The results provide oscillation characteristics of three scramjet combustion modes.
关键词	scramjet combustion mode POD instability
DOI	10.3390/aerospace9120826
收录类别	SCI
语种	英语
WOS记录号	WOS:000900245600001
WOS研究方向	Engineering, Aerospace
WOS类目	Engineering
论文分区	二类/Q1
力学所作者排名	1
RpAuthor	Chen, F (corresponding author), Shanghai Jiao Tong Univ, Sch Aeronaut & Astronaut, Shanghai 200240, Peoples R China. ; Gu, HB (corresponding author), Inst Mech CAS, Beijing 100190, Peoples R China.
引用统计	被引频次：4[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/311007/91781
专题	高温气体动力学国家重点实验室
作者单位	1.Shanghai Jiao Tong Univ, Sch Aeronaut & Astronaut, Shanghai 200240, Peoples R China 2.Inst Mech CAS, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Meng, Yu,Sun WM,Gu HB,et al. Supersonic Combustion Mode Analysis of a Cavity Based Scramjet[J]. AEROSPACE,2022,9,12,:826.
APA	Meng, Yu,孙文明,顾洪斌,Chen, Fang,&周芮旭.(2022).Supersonic Combustion Mode Analysis of a Cavity Based Scramjet.AEROSPACE,9(12),826.
MLA	Meng, Yu,et al."Supersonic Combustion Mode Analysis of a Cavity Based Scramjet".AEROSPACE 9.12(2022):826.

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