Numerical investigation of free oblique detonation wave induced by non-intrusive energy deposition
文献类型：期刊论文
| 作者 | Zhang, Wenshuo2,3; Zhang, Zijian1; Jiang, Zonglin2,3; Han, Xin2,3; Liu, Yunfeng2,3 ; Wang, Chun2,3; Jiang ZL(姜宗林); Zhang WS(张文硕); Jiang ZL(姜宗林); Liu YF(刘云峰)
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| 刊名 | AIP ADVANCES
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 11期号:12页码:17 |
| DOI | 10.1063/5.0073035 |
| 通讯作者 | Liu, Yunfeng(liuyunfeng@imech.ac.cn) |
| 英文摘要 | To validate the concept of free oblique detonation waves (ODWs) induced by non-intrusive energy deposition applied in ODW engines (ODWEs), numerical simulations are performed by modeling the laser spark as a high-temperature and high-pressure zone embedding in the high-speed incoming flow and by solving the non-dimensional reactive Euler equations with one-step chemistry. The initiation process, flow structures, and self-adapted characteristics of such kinds of free ODWs in an open space are discussed with varying dimensionless source energy and inflow Mach number. The results show that free ODWs can be initiated successfully by local non-intrusive energy deposition. In particular, four ignition regimes, namely, the subcritical regime, the critical I regime, the critical II regime, and the supercritical regime, which are analogous to the one-dimensional direct initiation of detonation, are distinguished by varying the dimensionless source energy. However, the typical energy required by each ignition regime is higher than that in the one-dimensional case due to multi-dimensional energy transmission and instabilities. Moreover, the dimensionless source energy should be moderate to obtain a stable free ODW flow field because extremely low source energy leads to ignition failure, while extremely high source energy causes premature ignition. When the inflow Mach number varies, it is found that free ODWs can adjust automatically to a nearly Chapman-Jouguet state, indicating the self-sustaining nature of free detonation waves. Due to this feature, ODWE performance will be relatively stable despite the change in inflow Mach numbers if free ODWs are utilized in the combustor. |
| WOS关键词 | INDUCED SPARK-IGNITION ; DIRECT INITIATION ; LASER IGNITION ; SIMULATION ; STABILITY ; CRITERIA ; WEDGE |
| 资助项目 | National Natural Science Foundation of China[11672312] ; National Natural Science Foundation of China[11532014] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000730522800003 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/88172]  |
| 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 | Liu, Yunfeng; Liu YF(刘云峰); Liu YF(刘云峰) |
| 作者单位 | 1.Hong Kong Polytech Univ, Dept Aeronaut & Aviat Engn, Kowloon, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Wenshuo,Zhang, Zijian,Jiang, Zonglin,et al. Numerical investigation of free oblique detonation wave induced by non-intrusive energy deposition[J]. AIP ADVANCES,2021,11(12):17. |
| APA | Zhang, Wenshuo.,Zhang, Zijian.,Jiang, Zonglin.,Han, Xin.,Liu, Yunfeng.,...&Zhang WS.(2021).Numerical investigation of free oblique detonation wave induced by non-intrusive energy deposition.AIP ADVANCES,11(12),17. |
| MLA | Zhang, Wenshuo,et al."Numerical investigation of free oblique detonation wave induced by non-intrusive energy deposition".AIP ADVANCES 11.12(2021):17. |
入库方式： OAI收割
来源：力学研究所
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