ON DIFFUSION VELOCITY AND THE MASS CONSERVATION EQUATION FOR COMPONENTS

Applied Mathematics and Mechanics (English Edition) ›› 1991, Vol. 12 ›› Issue (11): 1075-1082.

ON DIFFUSION VELOCITY AND THE MASS CONSERVATION EQUATION FOR COMPONENTS

刘大有^1,2, 吴邦贤^1,3

1. Multiphase Reaction Laboratory, Academia Sinica;
2. Institute of Mechanics, Academia Sinica, Beijing;
3. Institute of Engineering Thermophvsics, Academia Sinica, Beijing

收稿日期:1990-07-20 出版日期:1991-11-18 发布日期:1991-11-18
基金资助:
Project supported by the National Natural Science Foundation of China

ON DIFFUSION VELOCITY AND THE MASS CONSERVATION EQUATION FOR COMPONENTS

Liu Da-you^1,2, Wu Bang-xian^1,3

1. Multiphase Reaction Laboratory, Academia Sinica;
2. Institute of Mechanics, Academia Sinica, Beijing;
3. Institute of Engineering Thermophvsics, Academia Sinica, Beijing

Received:1990-07-20 Online:1991-11-18 Published:1991-11-18
Supported by:
Project supported by the National Natural Science Foundation of China

摘要/Abstract

摘要： The mass migration velocity(absolute velocitv) of component i in a multicomponent flow is equal to the convection velocity (frame velocity) plus the diffusion velocity (relative velocity). The diffusion velocity as well as the corresponding diffusion coefficient depends on how the convection velocity is adopted.

关键词: molecular diffusion, turbulent diffusion, diffusion and convection, diffusion equation

Abstract: The mass migration velocity(absolute velocitv) of component i in a multicomponent flow is equal to the convection velocity (frame velocity) plus the diffusion velocity (relative velocity). The diffusion velocity as well as the corresponding diffusion coefficient depends on how the convection velocity is adopted.

Key words: molecular diffusion, turbulent diffusion, diffusion and convection, diffusion equation

刘大有;吴邦贤. ON DIFFUSION VELOCITY AND THE MASS CONSERVATION EQUATION FOR COMPONENTS[J]. Applied Mathematics and Mechanics (English Edition), 1991, 12(11): 1075-1082.

Liu Da-you;Wu Bang-xian. ON DIFFUSION VELOCITY AND THE MASS CONSERVATION EQUATION FOR COMPONENTS[J]. Applied Mathematics and Mechanics (English Edition), 1991, 12(11): 1075-1082.

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ON DIFFUSION VELOCITY AND THE MASS CONSERVATION EQUATION FOR COMPONENTS

ON DIFFUSION VELOCITY AND THE MASS CONSERVATION EQUATION FOR COMPONENTS

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