An acceleration model for low-speed flames in curved channels
文献类型：期刊论文
| 作者 | Li, Tao2,3; Ye, Yue2; Wang, Xiaohan2; Xu, Baopeng1 |
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 36期号:4页码:8 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0209148 |
| 通讯作者 | Wang, Xiaohan(wangxh@ms.giec.ac.cn) ; Xu, Baopeng(baopengxu@dlut.edu.cn) |
| 英文摘要 | This study investigates the initial acceleration process of low-speed flames in curved channels. It also examines how the curvature and width of the channels influence flame propagation patterns and mechanisms. Previous research has highlighted the advantages of curved channels in facilitating flame acceleration. Subsequent studies have explored the interaction between pressure waves and flames, particularly in the later stages of flame propagation, leading to a high-speed flame phase. However, the effects of curvature and channel width on the initial acceleration phase of low-speed flames remain unclear. To address this gap, the present study utilizes theoretical methods to analyze the early acceleration phase of flames in curved channels with fixed curvature and width, from the closed end to the open end. Semi-analytical theoretical solutions are derived to determine the shape of the unburned gas flow field, flame front, and flame acceleration rate. The results demonstrate that the flow field shape deviates from axial symmetry to conserve angular momentum, favoring the inner wall of the curved channel and causing the flame front to adhere to it. In channels with small curvature, increasing the width leads to a decrease in the flame acceleration rate. Conversely, in channels with large curvature, widening the channel results in an increased flame acceleration rate. These findings provide theoretical insights for optimizing the design of the front-stage structure of curved detonation channels. |
| WOS关键词 | DETONATION |
| 资助项目 | National Natural Science Foundation of China ; [52206184] |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001209401100006 |
| 出版者 | AIP Publishing |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/41604]  |
| 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.Dalian Univ Technol, Sch Energy & Power Engn, Dalian 116024, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.China Univ Min & Technol, Sch Safety Engn, Xuzhou 221116, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Tao,Ye, Yue,Wang, Xiaohan,et al. An acceleration model for low-speed flames in curved channels[J]. PHYSICS OF FLUIDS,2024,36(4):8. |
| APA | Li, Tao,Ye, Yue,Wang, Xiaohan,&Xu, Baopeng.(2024).An acceleration model for low-speed flames in curved channels.PHYSICS OF FLUIDS,36(4),8. |
| MLA | Li, Tao,et al."An acceleration model for low-speed flames in curved channels".PHYSICS OF FLUIDS 36.4(2024):8. |
入库方式： OAI收割
来源：广州能源研究所
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