On numerical modeling of capillary flow dynamics in a microchannel model by using the finite element method

被引：0
|
作者：
Lee, C. -T. [1 ]
Lee, C. -C. [2 ]
Lin, J. -E. [3 ]
Liu, M. -L. [4 ]
机构：
[1] Beijing Inst Technol Bryant Coll, Zhuhai, Guangdong, Peoples R China
[2] Simon Fraser Univ, Dept Chem, Burnaby, BC, Canada
[3] George Mason Univ, Dept Math Sci, Fairfax, VA 22030 USA
[4] Shantou Univ, Dept Phys, Shantou, Guangdong, Peoples R China
来源：
JOURNAL OF APPLIED MECHANICS AND TECHNICAL PHYSICS | 2016年 / 57卷 / 05期
关键词：
two-phase capillary flow; microchannel; surface tension; finite element method; CROSS-SECTIONAL CAPILLARIES; CONTACT-ANGLE; DRIVEN;
D O I：
10.1134/S0021894416050229
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A simple microchannel model with submillimeter-scale geometries is proposed for studying capillary flows and investigating the dynamics in the channel. The finite element method incorporating surface tension and two-phase flow characteristic is applied. Velocity and pressure fields in the microchannel are presented. It is shown that the capillary-phase front in the microchannel is stirred, suffering small oscillations and retreating from the previous position before traveling again. Such a phenomenon is caused by nonlinear interaction of the capillary flow, surface tension, and boundary conditions.
引用
收藏
页码：937 / 948
页数：12
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