Formation of stabilized oblique detonation waves in a combustor
文献类型：期刊论文
| 作者 | Zhang ZJ(张子健)3,4; Wen, Chihyung1,2; Zhang WS(张文硕)3,4 ; Liu YF(刘云峰)3,4; Jiang ZL(姜宗林)3,4
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| 刊名 | COMBUSTION AND FLAME
 |
| 出版日期 | 2021 |
| 卷号 | 223页码:423-436 |
| 关键词 | Oblique detonation wave Combustor Oblique detonation engine Normal detonation wave Boundary layer separation |
| ISSN号 | 0010-2180 |
| DOI | 10.1016/j.combustflame.2020.09.034 |
| 通讯作者 | Liu, Yunfeng(liuyunfeng@imech.ac.cn) |
| 英文摘要 | Initiation and stabilization of oblique detonation waves (ODWs) are important to the successful application of oblique detonation engines (ODEs), which, however, have been rarely studied under realistic combustor conditions. In this study, the flow structures, stabilization characteristics and potential thrust performance (under different combustor's geometries with different ODW reflection locations) in a typical hydrogen-fueled ODE combustor are numerically studied by solving the two-dimensional multi-species Reynolds-averaged conservation equations with a detailed hydrogen combustion mechanism. Results suggest that all the detonation waves/shock waves can be stabilized in the space-confined combustor, and the boundary layer separation induced by the ODW-boundary layer interaction is found crucial to determining the types of combustion mode in the combustor. Except for the expected ODW-induced combustion, fast combustion induced by a stabilized overdriven normal detonation wave (NDW) may exist in the combustor simultaneously (even up to a large extent, > 73.7%). It is demonstrated that the stabilization of the overdriven NDW in the combustor can be attributed to the formation of an effective aerodynamic convergent-divergent nozzle that quickly accelerates the subsonic flow behind the NDW to supersonic, preventing downstream disturbances from propagating upstream. Benefiting from the chemical equilibrium shift caused by the expansion effect of the flow, more heat is released to compensate for the compression loss and the simulated thrust performance is shown not deteriorate significantly even with a large percentage of NDW-induced combustion existing in the ODE combustor. This work would be beneficial to the future developments of the ODEs. (C) 2020 The Combustion Institute. Published by Elsevier Inc. All rights reserved. |
| 分类号 | 一类/力学重要期刊 |
| WOS关键词 | HOT JET ; ADAPTIVE SIMULATIONS ; NUMERICAL-SIMULATION ; OXYGEN MIXTURES ; MACH NUMBER ; WEDGE ; INITIATION ; SHCRAMJET ; SCRAMJET ; INLET |
| 资助项目 | National Natural Science Foundation of China[11672312] ; National Natural Science Foundation of China[11532014] ; National Natural Science Foundation of China[11772284] |
| WOS研究方向 | Thermodynamics ; Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000599705300004 |
| 资助机构 | National Natural Science Foundation of China |
| 其他责任者 | Liu, Yunfeng |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/85888]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 作者单位 | 1.Hong Kong Polytech Univ, Interdisciplinary Div Aeronaut & Aviat Engn, Kowloon, Hong Kong, Peoples R China 2.Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China; 3.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhang ZJ,Wen, Chihyung,Zhang WS,et al. Formation of stabilized oblique detonation waves in a combustor[J]. COMBUSTION AND FLAME,2021,223:423-436. |
| APA | 张子健,Wen, Chihyung,张文硕,刘云峰,&姜宗林.(2021).Formation of stabilized oblique detonation waves in a combustor.COMBUSTION AND FLAME,223,423-436. |
| MLA | 张子健,et al."Formation of stabilized oblique detonation waves in a combustor".COMBUSTION AND FLAME 223(2021):423-436. |
入库方式： OAI收割
来源：力学研究所
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