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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 PublicationSCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
2013-11-01
Volume56Issue:11Pages:2178-2185
ISSN1674-7348
AbstractModeling 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.
KeywordDetonation Aluminum Multiphase
Subject Area爆炸力学
DOI10.1007/s11433-013-5268-1
URL查看原文
Indexed BySCI
Language英语
WOS IDWOS:000326643100026
WOS KeywordPARTICLE-AIR DETONATION ; NUMERICAL-SIMULATION ; HETEROGENEOUS DETONATION ; SOLID PARTICLES ; COMBUSTION ; MIXTURES ; WAVES ; SHOCK ; NANOALUMINUM ; SUSPENSIONS
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
Funding OrganizationNational 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
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47524
Collection高温气体动力学国家重点实验室
Corresponding AuthorTeng, HH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
AffiliationChinese 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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