Numerical study of oblique detonation wave initiation in a stoichiometric hydrogen-air mixture
文献类型：期刊论文
| 作者 | Wang T; Zhang YN; Teng HH(滕宏辉) ; Jiang ZL(姜宗林); Ng HD
|
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2015-09 |
| 卷号 | 27期号:9页码:96101 |
| ISSN号 | 1070-6631 |
| 产权排序 | [Wang, Tao; Teng, Honghui; Jiang, Zonglin] Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; [Zhang, Yining] Beijing Power Machinery Res Inst, State Key Lab Laser Prop & Applicat, Beijing 100074, Peoples R China; [Hoi Dick Ng] Concordia Univ, Dept Mech & Ind Engn, Montreal, PQ H3G 1M8, Canada |
| 通讯作者 | Wang, T (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. |
| 中文摘要 | Two-dimensional, oblique detonations induced by a wedge are simulated using the reactive Euler equations with a detailed chemical reaction model. The focus of this study is on the oblique shock-to-detonation transition in a stoichiometric hydrogen-air mixture. A combustible, gas mixture at low pressure and high temperature, corresponding to the realistic, inflow conditions applied in oblique detonation wave engines, is presented in this study. At practical flight conditions, the present numerical results illustrate that oblique detonation initiation is achieved through a smooth transition from a curved shock, which differs from the abrupt transition depicted in the previous studies. The formation mechanism of this smooth transition is discussed and a quantitative analysis is carried out by defining a characteristic length for the initiation process. The dependence of the initiation length on different parameters including the wedge angle, flight Mach number, and inflow Mach number is discussed. Despite the hypothetical nature of the simulation configuration, the present numerical study uses parameters we deem relevant to practical conditions and provides important observations for which future investigations can benefit from in reaching toward a rigorous theory of the formation and self-sustenance of oblique detonation waves. (C) 2015 AIP Publishing LLC. |
| 分类号 | 一类/力学重要期刊 |
| 类目[WOS] | Mechanics ; Physics, Fluids & Plasmas |
| 研究领域[WOS] | Mechanics ; Physics |
| 关键词[WOS] | INDUCED COMBUSTION RAMJETS ; ZONE STRUCTURE ; WEDGE ; STABILITY ; SIMULATION ; SURFACES |
| 收录类别 | SCI ; EI |
| 原文出处 | http://dx.doi.org/10.1063/1.4930986 |
| 语种 | 英语 |
| WOS记录号 | WOS:000362570800046 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/58403]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang T,Zhang YN,Teng HH,et al. Numerical study of oblique detonation wave initiation in a stoichiometric hydrogen-air mixture[J]. PHYSICS OF FLUIDS,2015,27(9):96101. |
| APA | Wang T,Zhang YN,Teng HH,Jiang ZL,&Ng HD.(2015).Numerical study of oblique detonation wave initiation in a stoichiometric hydrogen-air mixture.PHYSICS OF FLUIDS,27(9),96101. |
| MLA | Wang T,et al."Numerical study of oblique detonation wave initiation in a stoichiometric hydrogen-air mixture".PHYSICS OF FLUIDS 27.9(2015):96101. |
入库方式： OAI收割
来源：力学研究所
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