Effects of different product phases in aluminum dust detonation modeling

doi:10.1007/s11433-013-5268-1

	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.
发表期刊	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2013-11-01
卷号	56 期号:11 页码:2178-2185
ISSN	1674-7348
摘要	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.
关键词	Detonation Aluminum Multiphase
学科领域	爆炸力学
DOI	10.1007/s11433-013-5268-1
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000326643100026
关键词[WOS]	PARTICLE-AIR DETONATION ; NUMERICAL-SIMULATION ; HETEROGENEOUS DETONATION ; SOLID PARTICLES ; COMBUSTION ; MIXTURES ; WAVES ; SHOCK ; NANOALUMINUM ; SUSPENSIONS
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
项目资助者	National Natural Science Foundation of China(90916028) ; This work was supported by the National Natural Science Foundation of China (Grant No. 90916028).
论文分区	二类/Q3
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/47524
专题	高温气体动力学国家重点实验室
通讯作者	Teng, HH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
作者单位	Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
推荐引用方式 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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