详细信息

Ar-Kr溶液扩散系数的分子动力学模拟及其与温度的关系    

Molecular Dynamics Simulation of Diffusion Coefficients of Ar-Kr System and Its Temperature Dependence

文献类型:期刊文献

中文题名:Ar-Kr溶液扩散系数的分子动力学模拟及其与温度的关系

英文题名:Molecular Dynamics Simulation of Diffusion Coefficients of Ar-Kr System and Its Temperature Dependence

作者:严六明[1];严琪良[1];刘洪来[1];戎宗明[1];胡英[1]

机构:[1]华东理工大学化学系,上海200237

年份:1997

卷号:18

期号:12

起止页码:2026

中文期刊名:高等学校化学学报

外文期刊名:Chemical Journal of Chinese Universities

收录:CSTPCD;;Scopus;北大核心:【北大核心1996】;CSCD:【CSCD2011_2012】;

基金:国家自然科学基金;上海市青年教师学术基金

语种:中文

中文关键词:溶液;分子动力学模拟;扩散系数;氩;氪;温度

外文关键词:Ar-Kr solution system, Molecular dynamics simulation, Diffusion coefficients,Velocity correlation function, Mean square displacement

摘要:用分子动力学模拟方法研究确定Ar-Kr溶液的自扩散系数D1、D2和互扩散系数D12以及它们随温度变化的规律.结果表明,分别用Green-Kubo法和Einstein法得到的扩散系数在数值上一致;该溶液的3种扩散系数均满足D=D0e-E/RT关系.
Molecular dynamics simulation has been used to determine the self^diffusion co-efficients D1, D2 and mutual diffusion coefficient D12 of Ar-Kr system at different tempera-tures both from the Green-Kubo integrals over the velocity correlation function and from theEinstein relations for the mean square displacement. Good agreements were obtained be-tween the diffusion coefficients from the two methods- The temperature dependence of allthe diffusion coefficients is D=D0e-E/RT

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