Deformation of a slender bubble in a non-Newtonian liquid in an extensional flow

被引：8
|
作者：
Favelukis, M
Nir, A
机构：
[1] Natl Univ Singapore, Dept Chem & Environm Engn, Singapore 119260, Singapore
[2] Technion Israel Inst Technol, Dept Chem Engn, IL-32000 Haifa, Israel
来源：
CHEMICAL ENGINEERING SCIENCE | 2001年 / 56卷 / 15期
关键词：
bubble; deformation; extensional flow; fluid mechanics; mathematical modelling; non-Newtonian fluids;
D O I：
10.1016/S0009-2509(01)00125-7
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The deformation of a slender bubble in a non-Newtonian liquid in a simple extensional and creeping flow has been theoretically studied. Assuming a constant pressure in the liquid, the deformation of the bubble is described by a single ordinary differential equation, which was solved numerically. Analytical expressions for the local radius were obtained near the center and close to the end of the bubble. The results for the shape of the bubble are presented as a function of the capillary number and type of liquid. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：4643 / 4648
页数：6
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