Hydrodynamics of slug flow inside capillaries

被引：156

作者：

Taha, T ^{[1
]}

Cui, ZF ^{[1
]}

机构：

[1] Univ Oxford, Dept Engn Sci, Oxford OX1 3PJ, England

来源：

CHEMICAL ENGINEERING SCIENCE | 2004年 / 59卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

multiphase flow; numerical simulation; VOF; capillaries;

D O I：

10.1016/j.ces.2003.10.025

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Understanding the motion of long gas bubbles (gas slugs) inside capillaries is a challenging problem that is relevant in many processes of chemical and biological interests. It has been proved by many workers that such long gas bubbles can be used successfully in enhancing mass and heat transfer in many chemical and biological processes. In order to quantify and understand this enhancement a light was shed on the hydrodynamics of such a flow pattern. The volume of fluid method implemented in the commercial CFD package, Fluent, is used for this numerical study. Velocity and bubble profile were obtained as functions of capillary number. Computed values of the bubble velocity and diameter were in excellent agreement with published experimental measurements. The detailed velocity field around the bubble was also computed and compared favourably with those experimental results reported in literature. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：1181 / 1190

页数：10

共 23 条

[1] Fractionation of BSA and lysozyme using gas-sparged ultrafiltration in hollow fiber membrane modules [J].