Energy-transfer process in gas models of Lennard-Jones interactions

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	Energy-transfer process in gas models of Lennard-Jones interactions
	Yang, J. H. ; Zhang, Y. ; Zhang Y(张勇) ; Wang, J. ; Wang J(王矫) ; Zhao, H.
刊名	http://dx.doi.org/10.1103/PhysRevE.83.052104
	2011-05-09
关键词	KINETIC-THEORY MOTION HEAT
英文摘要	National Natural Science Foundation of China [10775115, 10975115, 10925525]; National Basic Research Program of China (973 Program) [2007CB814800]; We perform simulations to investigate how the energy carried by a molecule transfers to others in an equilibrium gas model. For this purpose we consider a microcanonical ensemble of equilibrium gas systems; each of them contains a tagged molecule located at the same position initially. The ensuing transfer process of the energy initially carried by the tagged molecule is then exposed in terms of the ensemble-averaged energy density distribution. In both a two-and a three-dimensional gas model with Lennard-Jones interactions at room temperature, it is found that the energy carried by a molecule propagates in the gas ballistically, in clear contrast with the Gaussian diffusion widely assumed in previous studies. A possible scheme of experimental study of this issue is also proposed.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/69227]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	Yang, J. H.,Zhang, Y.,Zhang Y,et al. Energy-transfer process in gas models of Lennard-Jones interactions[J]. http://dx.doi.org/10.1103/PhysRevE.83.052104,2011.
APA	Yang, J. H.,Zhang, Y.,张勇,Wang, J.,王矫,&Zhao, H..(2011).Energy-transfer process in gas models of Lennard-Jones interactions.http://dx.doi.org/10.1103/PhysRevE.83.052104.
MLA	Yang, J. H.,et al."Energy-transfer process in gas models of Lennard-Jones interactions".http://dx.doi.org/10.1103/PhysRevE.83.052104 (2011).