Cellular Aluminum Particle-Air Detonation Based on Realistic Heat Capacity Model | |
Xiang GX(项高翔); Yang PF(杨鹏飞); Teng HH(滕宏辉); Jiang ZL(姜宗林) | |
Source Publication | COMBUSTION SCIENCE AND TECHNOLOGY |
2020-10-02 | |
Volume | 192Issue:10Pages:1931-1945 |
ISSN | 0010-2202 |
Abstract | Modeling aluminum (Al) particle-air detonation is extremely difficult because the combustion is shock-induced, and there are multi-phase heat release and transfer in supersonic flows. Existing models typically use simplified combustion to reproduce the detonation velocity, which introduces many unresolved problems. The hybrid combustion model, coupling both the diffused- and kinetics-controlled combustion, is proposed recently, and then improved to include the effects of realistic heat capacities dependent on the particle temperature. In the present study, 2D cellular Al particle-air detonations are simulated with the realistic heat capacity model and its effects on the detonation featured parameters, such as the detonation velocity and cell width, are analyzed. Numerical results show that cell width increases as particle diameter increases, similarly to the trend observed with the original model, but the cell width is underestimated without using the realistic heat capacities. Further analysis is performed by averaging the 2D cellular detonations to quasi-1D, demonstrating that the length scale of quasi-1D detonation is larger than that of truly 1D model, similar to gaseous detonations. |
Keyword | Al particle cellular detonation heat capacity hybrid model |
DOI | 10.1080/00102202.2019.1632298 |
Indexed By | SCI ; EI |
Language | 英语 |
WOS ID | WOS:000472424000001 |
WOS Keyword | NUMERICAL-SIMULATION ; HETEROGENEOUS DETONATION ; SUSPENSIONS ; MIXTURES ; DIFFRACTION ; COMBUSTION ; TRANSITION ; INITIATION ; IGNITION |
WOS Research Area | Thermodynamics ; Energy & Fuels ; Engineering |
WOS Subject | Thermodynamics ; Energy & Fuels ; Engineering, Multidisciplinary ; Engineering, Chemical |
Funding Project | National Natural Science Foundation of China[11822202] ; National Natural Science Foundation of China[91641130] ; Fundamental Research Funds for the Central Universities of China[31020170QD087] ; Basic Research Plan of Natural Science in Shaanxi Province-General Project (Youth)[2019JQ-132] |
Funding Organization | National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities of China ; Basic Research Plan of Natural Science in Shaanxi Province-General Project (Youth) |
Classification | 二类 |
Ranking | 1 |
Contributor | Teng HongHui |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/79355 |
Collection | 高温气体动力学国家重点实验室 |
Recommended Citation GB/T 7714 | Xiang GX,Yang PF,Teng HH,et al. Cellular Aluminum Particle-Air Detonation Based on Realistic Heat Capacity Model[J]. COMBUSTION SCIENCE AND TECHNOLOGY,2020,192,10,:1931-1945.Rp_Au:Teng HongHui |
APA | Xiang GX,Yang PF,Teng HH,&Jiang ZL.(2020).Cellular Aluminum Particle-Air Detonation Based on Realistic Heat Capacity Model.COMBUSTION SCIENCE AND TECHNOLOGY,192(10),1931-1945. |
MLA | Xiang GX,et al."Cellular Aluminum Particle-Air Detonation Based on Realistic Heat Capacity Model".COMBUSTION SCIENCE AND TECHNOLOGY 192.10(2020):1931-1945. |
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