文献类型：期刊文献

中文题名：分子热运动揭示的传递现象

英文题名：Transfer Phenomena Revealed by Molecular Thermal Motion

作者：孙志仁[1]

机构：[1]华东理工大学化工学院,上海200237

年份：2020

卷号：37

期号：2

起止页码：141

中文期刊名：化工高等教育

外文期刊名：Higher Education in Chemical Engineering

收录：国家哲学社会科学学术期刊数据库

语种：中文

中文关键词：分子热运动;统计模型;分子热运动平均速度;分子平均自由程;传递通量

外文关键词：Molecular thermal movement;Statistical model;Average velocity of molecular thermal motion;Molecular average free path;Transfer flux

摘要：作者利用三维分子热运动模型统计得到分子热运动平均速度和分子平均自由程,以及分量和总量之间的关系;运用传递通量概念,推导动量通量、热量通量和质量通量表达式,并与牛顿黏性定律、傅立叶导热定律和费克分子扩散定律进行对比,获得了气体动力学理论结论。
In this paper,the average velocity of molecular thermal motion and the average free path of molecule,as well as the relationship between component and total amount,are obtained by means of three-dimensional molecular thermal motion model.By using the concept of transfer flux,the expressions of momentum flux,heat flux and mass flux are derived and compared with Newton’s viscosity law,Fourier heat conduction law and Feck molecular diffusion law,and the theoretical conclusions of gas dynamics are obtained.