| Study on initiation characteristics of oblique detonation induced by hydrogen jets in acetylene-air mixtures | |
Yichen, Zhang; Gaoxiang, Xiang; Xiang, Gao; Jia, Yu; Xiquan, Hu; Yirong, Xin; Danyang, Li; Wang Q(汪球)
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| Source Publication | FUEL
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| 2023-10-15 | |
| Volume | 350Pages:128787 |
| ISSN | 0016-2361 |
| Abstract | In this paper, effects of hydrogen jets in acetylene-air mixtures on the initiation characteristics of oblique detonation wave (ODW) are investigated, the two-dimensional (2D) multi-component NS equations considering detailed chemical reactions are solved. Influences of the transverse jet on flow field characteristics of the ODW are studied, including the initiation characteristics, the wave structures, and the state parameters. The existence of the jet changes the ignited mode of the ODW from double Mach interaction to single Mach interaction. Several wave configurations and their transitions induced by the jets are observed, including deflagration-to-detonation transition (DDT), jet-induced bow shock wave (BSW) in front of the transverse jet and rapidly develops into ODW, and ODW that generated directly in front of the transverse jet. The structure of these three wave systems is mainly influenced by the flow discharge of the hydrogen jet. When the hydrogen jet is small, no combustion is induced by the BSW in front of the jet. ODW is induced by the action of the deflagration wave and OSW. Increasing the hydrogen jet, BSW induces combustion and rapidly develops into ODW. When the hydrogen jet is large enough, the BSW disappears and direct detonation combustion occurs to produce ODW. Two types of relationships are obtained between the initiated position and the position of the transverse jet: the U-shaped curve at low flow discharge and the positive correlation at high flow discharge. When the flow discharge is small and no shock wave-induced combustion occurs, the initiated position is influenced by the position of the deflagration wave interacting with the OSW, which forms a U-shaped curve with the position of hydrogen jet. When the flow discharge is high and shock wave induced combustion occurs, ODW is rapidly developed behind the jet, resulting in a positive correlation between the initiated position and the position of hydrogen jet. Furthermore, the viscous effect has significant influence on the flow field characteristics of ODW, it promotes the transition between these initiation modes and shortens the initiation distance of oblique detonation. The findings of this study can better help understand the effect of transverse hydrogen jets on ODW initiation and contribute to theoretical studies and engineering applications of oblique detonation engines. |
| Keyword | Oblique detonation wave Acetylene Transverse jet Numerical simulation |
| DOI | 10.1016/j.fuel.2023.128787 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001018135900001 |
| WOS Research Area | Energy & Fuels ; Engineering, Chemical |
| Funding Organization | National Natural Science Foundation of China [12202365] ; Guangdong Basic and Applied Basic research Foundation [2022A1515011565, 2023A1515010031] ; Natural Science Foundation of Chongqing [2022NSCQ-MSX5709] ; Foundation of State Key Laboratory of High Temperature Gas Dynamics [2021KF10] ; China Postdoctoral Science Foundation [2021 M692633, 2022 T150534] |
| Classification | 一类 |
| Ranking | 3+ |
| Contributor | Gaoxiang, X (corresponding author), Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710129, Peoples R China. ; Gaoxiang, X (corresponding author), Northwestern Polytech Univ, Innovat Ctr NPU Chongqing, Chongqing 400000, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/92391 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.{Yichen Zhang, Gaoxiang Xiang, Jia Yu, Xiquan Hu, Yirong Xin, Danyang Li} Northwestern Polytech Univ Sch Mech Civil Engn & Architecture Xian 710129 Peoples R China 2.{Xiang Gao} Xian Univ Sci & Technol Coll Geol & Environm Xian 710054 Peoples R China 3.{Qiu Wang} Chinese Acad Sci Inst Mech State Key Lab High Temp Gas Dynam Beijing 100190 Peoples R China 4.{Gaoxiang Xiang} Northwestern Polytech Univ Shenzhen Res & Dev Inst Shenzhen 518057 Peoples R China 5.{Gaoxiang Xiang} Northwestern Polytech Univ Innovat Ctr NPU Chongqing Chongqing 400000 Peoples R China |
| Recommended Citation GB/T 7714 | Yichen, Zhang,Gaoxiang, Xiang,Xiang, Gao,et al. Study on initiation characteristics of oblique detonation induced by hydrogen jets in acetylene-air mixtures[J]. FUEL,2023,350:128787.Rp_Au:Gaoxiang, X (corresponding author), Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710129, Peoples R China., Gaoxiang, X (corresponding author), Northwestern Polytech Univ, Innovat Ctr NPU Chongqing, Chongqing 400000, Peoples R China. |
| APA | Yichen, Zhang.,Gaoxiang, Xiang.,Xiang, Gao.,Jia, Yu.,Xiquan, Hu.,...&汪球.(2023).Study on initiation characteristics of oblique detonation induced by hydrogen jets in acetylene-air mixtures.FUEL,350,128787. |
| MLA | Yichen, Zhang,et al."Study on initiation characteristics of oblique detonation induced by hydrogen jets in acetylene-air mixtures".FUEL 350(2023):128787. |
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| Jp2023Fa111.pdf（8043KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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