Exploration of initiation and stabilization properties of oblique detonation in a combustor with hydrogen fuel pre-injection

doi:10.1016/j.ijhydene.2024.10.191

	Exploration of initiation and stabilization properties of oblique detonation in a combustor with hydrogen fuel pre-injection
	Xin, Yirong 1; Jiang, Ziqi 4; Guo, Shuaishuai3 ; Shen, Lihui 3; Xiang, Gaoxiang 1,5,6; Wang Q(汪球)2
Corresponding Author	Xiang, Gaoxiang([email protected])
Source Publication	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
	2024-11-19
Volume	91 Pages:584-595
ISSN	0360-3199
Abstract	This study delves into the innovative aspects of hydrogen fuel injection and mixing within the duct of an oblique detonation engine (ODE) from both theoretical and numerical perspectives. By solving the multi-species reactive Reynolds-Averaged Navier-Stokes (RANS) equations alongside a hydrogen combustion model, the fluid dynamics and combustion processes in the combustor are thoroughly examined. The analysis shows that employing rampcantilever injectors for fuel delivery leads to fuel accumulation in the gas stream core, leaving a deficiency near the wall area. By supplementing ramp-cantilever injectors with wall injectors, fuel distribution adjacent to the wall is significantly enhanced, enabling the successful establishment of a detonation mode. However, the confined space and geometric constraints generate complex flow patterns, particularly due to boundary layer separation. The combustor operates in a stable configuration featuring an oblique shock-oblique detonationseparation shock (OSW-ODW-SSW) structure. Conversely, an oblique shock-oblique detonation-normal detonation-separation shock (OSW-ODW-NDW-SSW) arrangement is found to be unstable. Adjusting the position of the expansion corner on the upper wall forward stabilizes the unstable configuration, maintaining the ODW. Spatial flow inhomogeneities, especially equivalence ratio variations, are identified as crucial factors that can hinder ODW initiation and stability. These findings emphasize the pivotal role of optimizing fuel distribution, refining geometrical design, and ensuring flow uniformity in guaranteeing the efficiency and stability of oblique detonation engines. The outcomes provide valuable insights for future improvements in ODE design and operation.
Keyword	Fuel pre-injection Oblique detonation engine Standing detonation Combustor
DOI	10.1016/j.ijhydene.2024.10.191
Indexed By	SCI ; EI
Language	英语
WOS ID	WOS:001336037600001
WOS Keyword	TRANSITION ; SHCRAMJET ; SCRAMJET ; LAYER
WOS Research Area	Chemistry ; Electrochemistry ; Energy & Fuels
WOS Subject	Chemistry, Physical ; Electrochemistry ; Energy & Fuels
Funding Project	National Natural Science Foundation of China[12202365] ; Guangdong Basic and Applied Basic research Foundation[2022A1515011565] ; Guangdong Basic and Applied Basic research Foundation[2023A1515010031] ; Natural Science Foundation of Chongqing[2022NSCQ-MSX5709] ; Foundation of State Key Laboratory of High Temperature Gas Dynamics[2021KF10] ; China Postdoctoral Science Foundation[2021M692633] ; China Postdoctoral Science Foundation[2022T150534] ; Northwestern Polytechnical University's Future Industry Proof-of-Concept Project for Aerospace Propulsion[24GNYZ0001-04]
Funding Organization	National Natural Science Foundation of China ; Guangdong Basic and Applied Basic research Foundation ; Natural Science Foundation of Chongqing ; Foundation of State Key Laboratory of High Temperature Gas Dynamics ; China Postdoctoral Science Foundation ; Northwestern Polytechnical University's Future Industry Proof-of-Concept Project for Aerospace Propulsion
Classification	一类
Ranking	3+
Contributor	Xiang, Gaoxiang
Citation statistics	Cited Times:1[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://dspace.imech.ac.cn/handle/311007/97071
Collection	高温气体动力学国家重点实验室
Affiliation	1.Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710129, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; 3.Beijing Syst Design Inst Electromech Engn, Beijing 100084, Peoples R China; 4.Hong Kong Polytech Univ, Dept Aeronaut & Aviat Engn, Hong Kong, Peoples R China; 5.Northwestern Polytech Univ Shenzhen, Res & Dev Inst, Shenzhen 518057, Peoples R China; 6.Northwestern Polytech Univ, Innovat Ctr NPU Chongqing, Chongqing 400000, Peoples R China
Recommended Citation GB/T 7714	Xin, Yirong,Jiang, Ziqi,Guo, Shuaishuai,et al. Exploration of initiation and stabilization properties of oblique detonation in a combustor with hydrogen fuel pre-injection[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2024,91:584-595.Rp_Au:Xiang, Gaoxiang
APA	Xin, Yirong,Jiang, Ziqi,Guo, Shuaishuai,Shen, Lihui,Xiang, Gaoxiang,&汪球.(2024).Exploration of initiation and stabilization properties of oblique detonation in a combustor with hydrogen fuel pre-injection.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,91,584-595.
MLA	Xin, Yirong,et al."Exploration of initiation and stabilization properties of oblique detonation in a combustor with hydrogen fuel pre-injection".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 91(2024):584-595.

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