中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 力学研究所
  3. 中国科学院力学研究所
  4. 高温气体动力学国家重点实验室
The initiation characteristics of oblique detonation in acetylene-air mixtures in the finite wedge

文献类型：期刊论文

作者Zhang, Yichen4; Xiang, Gaoxiang3,4; Tu, Qirong4; Wang, Qiu2; Wei, Haotian1; Wang Q(汪球)
刊名ACTA MECHANICA SINICA
出版日期2023-03-01
卷号39期号:3页码:9
关键词Acetylene Finite wedge Oblique detonation Initiation characteristics Equivalence ratio
ISSN号0567-7718
DOI10.1007/s10409-022-22231-x
通讯作者Xiang, Gaoxiang(xianggx@nwpu.edu.cn)
英文摘要Oblique detonation waves (ODWs) have been widely studied due to their application in hypersonic propulsion. Most of the previous studies focus on hydrogen fuel, and the induced wedge is always infinite. In this paper, based on the detailed chemical reaction model, the two-dimensional multi-component Euler equations are solved, and the finite wedge-induced oblique detonations for acetylene-air mixtures are investigated numerically and theoretically. Effects of expansion waves, inflow Mach number and equivalence ratio (ER) on initiation characteristics of ODW are studied according to the initiation criterion in the confined space. Results show that the initiation distance of acetylene is relatively larger than the hydrogen fuel, and the convergence position of deflagration waves and the originated position of expansion waves determine the initiation characteristics of ODW. As the originated position of the expansion wave is downstream of the convergence position of the deflagration, the ODW is ignited; Otherwise, the ODW is not initiated. The characteristics length of induction zone presents a U-shaped curve distribution for different ERs, both fuel-rich and lean-burn conditions will result in the non-initiation of ODW.
WOS关键词OXYGEN MIXTURES ; PROPAGATION ; LIMITS ; WAVES ; TECHNOLOGIES
资助项目Guangdong Basic and Applied Basic research Foundation ; Foundation of State Key Laboratory of High Temperature Gas Dynamics ; China Postdoctoral Science Foundation ; [2022A1515011565] ; [2021KF10] ; [2021M692633] ; [2022T150534]
WOS研究方向Engineering ; Mechanics
语种英语
WOS记录号WOS:000911461500001
资助机构Guangdong Basic and Applied Basic research Foundation ; Foundation of State Key Laboratory of High Temperature Gas Dynamics ; China Postdoctoral Science Foundation
源URL[http://dspace.imech.ac.cn/handle/311007/91467]  
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
作者单位1.Northwestern Polytech Univ, Sch Astronaut, Xian 710129, Peoples R China
2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
3.Northwestern Polytech Univ Shenzhen, Res & Dev Inst, Shenzhen 518057, Peoples R China
4.Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710129, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Yichen,Xiang, Gaoxiang,Tu, Qirong,et al. The initiation characteristics of oblique detonation in acetylene-air mixtures in the finite wedge[J]. ACTA MECHANICA SINICA,2023,39(3):9.
APA Zhang, Yichen,Xiang, Gaoxiang,Tu, Qirong,Wang, Qiu,Wei, Haotian,&Wang Q.(2023).The initiation characteristics of oblique detonation in acetylene-air mixtures in the finite wedge.ACTA MECHANICA SINICA,39(3),9.
MLA Zhang, Yichen,et al."The initiation characteristics of oblique detonation in acetylene-air mixtures in the finite wedge".ACTA MECHANICA SINICA 39.3(2023):9.

入库方式： OAI收割

来源：力学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。