| Characteristics of cellular structure of detonation waves propagating in annular channels | |
Yao KP(姚克鹏) ; Yang PF(杨鹏飞); Wang C(王春); Jiang ZL(姜宗林)
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| Corresponding Author | Wang, Chun(wangchun@imech.ac.cn) |
| Source Publication | PHYSICS OF FLUIDS
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| 2023-10-01 | |
| Volume | 35Issue:10Pages:13 |
| ISSN | 1070-6631 |
| Abstract | This study investigates the characteristics of stable and unstable cells and wavefronts of detonation waves propagating in annular channels with different inner radii and channel widths using two-dimensional Euler equations along with a two-step induction-exothermic reaction kinetics. The results reveal that the effect of annular channels on the detonation cell structure depends on both the inner radius and channel width. To quantify this effect, a parameter sigma is introduced, representing the ratio of the inner and outer radii of the channel. We have discovered that for values of the parameter sigma exceeding a critical value sigma(s), the detonation wavefront demonstrates characteristics similar to those observed in a straight channel scenario. On the contrary, when sigma is below sigma(s), the wavefront becomes distorted, potentially leading to Mach reflection as sigma decreases further to another critical value sigma(m). Additionally, the interaction among expansion waves induced by the inner walls leads to an augmented induced length and the potential occurrence of localized decoupling of the detonation wave, particularly for unstable detonation waves. However, it is worth noting that the re-initiation of the detonation wave may be triggered by the formation of hotspots resulting from the interaction between transverse shock waves and the detonation wave. This study aims to characterize the propagation characteristics of detonation waves within annular channels, with the objective of providing valuable insights for the design and optimization of annular chamber configurations in systems involving detonation. |
| DOI | 10.1063/5.0160349 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001136551000003 |
| WOS Keyword | OBLIQUE DETONATION ; PERFORMANCE ; PARAMETERS ; COMBUSTION ; INJECTION ; FLOW |
| WOS Research Area | Mechanics ; Physics |
| WOS Subject | Mechanics ; Physics, Fluids & Plasmas |
| Funding Project | National Natural Science Foundation of China[12072353] ; National Natural Science Foundation of China[12132017] ; National Natural Science Foundation of China[12202014] |
| Funding Organization | National Natural Science Foundation of China |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Wang, Chun |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/94068 |
| Collection | 高温气体动力学国家重点实验室 |
| Recommended Citation GB/T 7714 | Yao KP,Yang PF,Wang C,et al. Characteristics of cellular structure of detonation waves propagating in annular channels[J]. PHYSICS OF FLUIDS,2023,35,10,:13. |
| APA | 姚克鹏,杨鹏飞,王春,&姜宗林.(2023).Characteristics of cellular structure of detonation waves propagating in annular channels.PHYSICS OF FLUIDS,35(10),13. |
| MLA | 姚克鹏,et al."Characteristics of cellular structure of detonation waves propagating in annular channels".PHYSICS OF FLUIDS 35.10(2023):13. |
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| Jp2023A239.pdf（8005KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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