Effects of different product phases in aluminum dust detonation modeling | |
Teng HongHui; Jiang ZongLin; Teng, HH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. | |
Source Publication | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY |
2013-11-01 | |
Volume | 56Issue:11Pages:2178-2185 |
ISSN | 1674-7348 |
Abstract | Modeling aluminum (Al) dust detonation is difficult due to uncertainties in the product species and fractions. Recent experiments indicate both gaseous and solid alumina may appear in the detonation product, but only the gaseous one was considered before. To resolve this drawback, we study the effects of different product phases on the detonation parameters with the hybrid combustion model proposed recently. Numerical results demonstrate that the assumption of gaseous product induces high velocity and pressure, while the assumption of solid product induces low velocity and pressure. To clarify how close-to-experiment results have been obtained with one phase assumption, we revisit previous studies and analyze the models. The inconsistency between the product phase and heat release is found, and then one model with variable heat release dependent on the product phase is proposed. Then simulations with both the gaseous and solid products are carried out, and results reveal the necessity of establishing a relationship between the heat release and reaction products.; Modeling aluminum (Al) dust detonation is difficult due to uncertainties in the product species and fractions. Recent experiments indicate both gaseous and solid alumina may appear in the detonation product, but only the gaseous one was considered before. To resolve this drawback, we study the effects of different product phases on the detonation parameters with the hybrid combustion model proposed recently. Numerical results demonstrate that the assumption of gaseous product induces high velocity and pressure, while the assumption of solid product induces low velocity and pressure. To clarify how close-to-experiment results have been obtained with one phase assumption, we revisit previous studies and analyze the models. The inconsistency between the product phase and heat release is found, and then one model with variable heat release dependent on the product phase is proposed. Then simulations with both the gaseous and solid products are carried out, and results reveal the necessity of establishing a relationship between the heat release and reaction products. |
Keyword | Detonation Aluminum Multiphase |
Subject Area | 爆炸力学 |
DOI | 10.1007/s11433-013-5268-1 |
URL | 查看原文 |
Indexed By | SCI |
Language | 英语 |
WOS ID | WOS:000326643100026 |
WOS Keyword | PARTICLE-AIR DETONATION ; NUMERICAL-SIMULATION ; HETEROGENEOUS DETONATION ; SOLID PARTICLES ; COMBUSTION ; MIXTURES ; WAVES ; SHOCK ; NANOALUMINUM ; SUSPENSIONS |
WOS Research Area | Physics |
WOS Subject | Physics, Multidisciplinary |
Funding Organization | National Natural Science Foundation of China(90916028) ; This work was supported by the National Natural Science Foundation of China (Grant No. 90916028). |
Classification | 二类/Q3 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/47524 |
Collection | 高温气体动力学国家重点实验室 |
Corresponding Author | Teng, HH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. |
Affiliation | Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China |
Recommended Citation GB/T 7714 | Teng HongHui,Jiang ZongLin,Teng, HH . Effects of different product phases in aluminum dust detonation modeling[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2013,56,11,:2178-2185. |
APA | Teng HongHui,Jiang ZongLin,&Teng, HH .(2013).Effects of different product phases in aluminum dust detonation modeling.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,56(11),2178-2185. |
MLA | Teng HongHui,et al."Effects of different product phases in aluminum dust detonation modeling".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 56.11(2013):2178-2185. |
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