Reconsideration On The Role Of The Specific Heat Ratio In Arrhenius Law Applications

doi:10.1007/s10409-008-0137-2

IMECH-IR > 力学所知识产出(1956-2008)

	Reconsideration On The Role Of The Specific Heat Ratio In Arrhenius Law Applications
	Liu YF(刘云峰); Jiang ZL(姜宗林); Liu, YF (reprint author), Chinese Acad Sci, Inst Mech, Key Lab High Temp Gas Dynam, Beijing 100080, Peoples R China.
发表期刊	Acta Mechanica Sinica
	2008
页码	261-266
ISSN	0567-7718
摘要	Arrhenius law implicates that only those molecules which possess the internal energy greater than the activation energy E-a can react. However, the internal energy will not be proportional to the gas temperature if the specific heat ratio gamma and the gas constant R vary during chemical reaction processes. The varying gamma may affect significantly the chemical reaction rate calculated with the Arrhenius law under the constant gamma assumption, which has been widely accepted in detonation and combustion simulations for many years. In this paper, the roles of variable gamma and R in Arrhenius law applications are reconsidered, and their effects on the chemical reaction rate are demonstrated by simulating one-dimensional C-J and two-dimensional cellular detonations. A new overall one-step detonation model with variable gamma and R is proposed to improve the Arrhenius law. Numerical experiments demonstrate that this improved Arrhenius law works well in predicting detonation phenomena with the numerical results being in good agreement with experimental data.
关键词	Arrhenius Law Detonation Specific Heat Ratio Cellular Detonations
DOI	10.1007/s10409-008-0137-2
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:000256083800004
关键词[WOS]	CELLULAR DETONATIONS
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Mechanical ; Mechanics
引用统计	被引频次：5[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/311007/26040
专题	力学所知识产出(1956-2008)
通讯作者	Liu, YF (reprint author), Chinese Acad Sci, Inst Mech, Key Lab High Temp Gas Dynam, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Liu YF,Jiang ZL,Liu, YF . Reconsideration On The Role Of The Specific Heat Ratio In Arrhenius Law Applications[J]. Acta Mechanica Sinica,2008:261-266.
APA	刘云峰,姜宗林,&Liu, YF .(2008).Reconsideration On The Role Of The Specific Heat Ratio In Arrhenius Law Applications.Acta Mechanica Sinica,261-266.
MLA	刘云峰,et al."Reconsideration On The Role Of The Specific Heat Ratio In Arrhenius Law Applications".Acta Mechanica Sinica (2008):261-266.

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