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Investigation on Accelerated Initiation of Oblique Detonation Wave Induced by Laser-Heating Hot-Spot

文献类型：期刊论文

作者Xin, Yirong5; Shang, Jiahao3,4; Xiang, Gaoxiang1,2,5; Wang, Qiu4; Wang Q(汪球)
刊名AEROSPACE
出版日期2024-06-01
卷号11期号:6页码:16
关键词oblique detonation initiation acceleration hot-spot numerical simulation Navier-Stokes equation
DOI10.3390/aerospace11060485
通讯作者Xiang, Gaoxiang(xianggx@nwpu.edu.cn) ; Wang, Qiu(wangqiu@imech.ac.cn)
英文摘要A reliable initiation of oblique detonation is critical in oblique detonation engines, especially for oblique detonation engines under extreme conditions such as a high altitude and low Mach number, which may lead to excessive length of the induction zone and even the phenomenon of extinction. In this paper, surface ignition was applied to the initiation of oblique detonation, and a high-temperature region was set on the wedge to simulate the presence of a hot-spot induced by the laser heating. The two-dimensional multi-component Navier-Stokes equations considering a detailed H2 combustion mechanism are solved, and the oblique detonation wave accelerated by a hot-spot is studied. In this paper, hot-spots in the induction zone on the wedge, are introduced to explore the possibility of hot-spot initiation, providing a potential method for initiation control. Results show that these methods can effectively promote the accelerated initiation of the oblique detonation. Furthermore, the hot-spot temperature, size and position are varied to analyze their effects on the initiation position. Increasing the temperature and size of the hot-spot both can accelerate initiation, but from the perspective of energy consumption, a small hot-spot at a high temperature is preferable for accelerating ODW initiation than a large hot-spot at a low temperature. The initiated position of the oblique detonation is sensitive to the position of the hot-spots; if a 2000 K hotspot is at the beginning of the wedge, then the ODW's initiation distance will be reduced to about 30% of that without hotspot acceleration.
WOS关键词MIXTURES ; IGNITION ; COMBUSTION
资助项目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]
WOS研究方向Engineering
语种英语
WOS记录号WOS:001254628100001
资助机构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
源URL[http://dspace.imech.ac.cn/handle/311007/95832]  
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Xiang, Gaoxiang; Wang, Qiu
作者单位1.Northwestern Polytech Univ, Innovat Ctr NPU Chongqing, Chongqing 400000, Peoples R China
2.Northwestern Polytech Univ Shenzhen, Res & Dev Inst, Shenzhen 518057, Peoples R China
3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Inst Mech, Beijing 100190, Peoples R China
5.Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710129, Peoples R China
推荐引用方式
GB/T 7714		 Xin, Yirong,Shang, Jiahao,Xiang, Gaoxiang,et al. Investigation on Accelerated Initiation of Oblique Detonation Wave Induced by Laser-Heating Hot-Spot[J]. AEROSPACE,2024,11(6):16.
APA Xin, Yirong,Shang, Jiahao,Xiang, Gaoxiang,Wang, Qiu,&汪球.(2024).Investigation on Accelerated Initiation of Oblique Detonation Wave Induced by Laser-Heating Hot-Spot.AEROSPACE,11(6),16.
MLA Xin, Yirong,et al."Investigation on Accelerated Initiation of Oblique Detonation Wave Induced by Laser-Heating Hot-Spot".AEROSPACE 11.6(2024):16.

入库方式： OAI收割

来源：力学研究所

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