文献类型：期刊文献

中文题名：质量传递现象方程

英文题名：Mass Transfer Phenomenon Equation

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：5

起止页码：132

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：费克分子扩散定律;纽特逊扩散;微团脉动平均速度;微团尺度;对流质量扩散

外文关键词：Fick’s law of molecular diffusion;Newterson diffusion;Average velocity of microcluster pulsation;Microcluster scale;Convective mass diffusion

摘要：文章首先介绍了传统理论的质量传递机理,即分子扩散和对流扩散,并说明了对流扩散中有层流和湍流之分;然后以分子、分子微团和涡流微团为研究尺度,针对不同方向、不同流动状态的质量传递现象,运用质量传递通量概念,推导出质量传递通量表达式;最后归纳出质量传递现象方程,揭示了质量传递机理。
In this paper,the mass transfer mechanism of traditional theory is introduced,which is molecular diffusion and convective diffusion,and there are laminar flow and turbulence in convective diffusion.Then,the expression of mass transfer flux is derived by using the concept of mass transfer flux for the mass transfer phenomenon in different directions and different flow states by taking molecule,molecular microcluster and vortex microcluster as the research scale.The equation of mass transfer phenomenon is summarized and the mechanism of mass transfer is revealed.