甲烷凝结系数的分子动力学研究

工程热物理学报 , 2002, 23(3): 342-344.

1.清华大学工程力学系,北京100084

2.清华大学工程力学系,北京100084

3.清华大学工程力学系,北京100084

基金项目: 清华大学校科研和教改项目国家自然科学基金(50106004)

MOLECULAR DYNAMICS STUDY OF THE CONDENSATION COEFFICIENT OF METHANE

对甲烷的蒸发与凝结过程进行了分子动力学模拟,采用特征时间法统计获得了甲烷在不同温度条件下的凝结系数,并与氩的凝结系数进行了比较.结果表明,甲烷与氩的凝结系数都随温度增加而减小,但温度对甲烷凝结系数的影响小于对氩凝结系数的影响,其差异可以用蒸发与凝结的过渡态理论进行解释.

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