An efficient approach to achieve flame acceleration and transition to detonation
文献类型：期刊论文
| 作者 | Li, Tao1,3 ; Wang, Xiaohan1,3; Xu, Baopeng2; Kong, Fanfu2
|
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 33期号:5页码:14 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0048100 |
| 通讯作者 | Wang, Xiaohan(wangxh@ms.giec.ac.cn) ; Xu, Baopeng(baopengxu@dlut.edu.cn) |
| 英文摘要 | This paper presents a novel method to accelerate flame propagation and transition to detonation in a coiled channel. The objective is to bring to light the basic understanding of the phenomenon and to show its potential in the fields of highly efficient combustion or propulsion. It was found that the flame evolution in the coiled channel is significantly different from that in a straight channel. In the flame acceleration stage, the flame propagation velocity increases exponentially in the coiled channel while it increases linearly in the straight channel, primarily due to the existence of a strong velocity gradient in the transverse direction in the coiled channel. Deflagration to detonation transition (DDT) was only observed in the coiled channel under current settings, being triggered by a series of local explosions at the boundary layer. In general, the coiled channel can greatly accelerate the flame and shorten the distance of the DDT compared with the straight channel. |
| WOS关键词 | COMBUSTION ; CHANNELS ; SIMULATION ; OBSTACLES ; MIXTURES ; DDT ; INITIATION ; IGNITION ; SOLVER |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA 21060102] ; National Key R&D Program of China[2018YFB1501500] |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000677502500002 |
| 出版者 | AMER INST PHYSICS |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key R&D Program of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/33502]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Wang, Xiaohan; Xu, Baopeng |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 2.Dalian Univ Technol, Sch Energy & Power Engn, Dalian 116024, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Tao,Wang, Xiaohan,Xu, Baopeng,et al. An efficient approach to achieve flame acceleration and transition to detonation[J]. PHYSICS OF FLUIDS,2021,33(5):14. |
| APA | Li, Tao,Wang, Xiaohan,Xu, Baopeng,&Kong, Fanfu.(2021).An efficient approach to achieve flame acceleration and transition to detonation.PHYSICS OF FLUIDS,33(5),14. |
| MLA | Li, Tao,et al."An efficient approach to achieve flame acceleration and transition to detonation".PHYSICS OF FLUIDS 33.5(2021):14. |
入库方式： OAI收割
来源：广州能源研究所
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