Effect of confinement on droplet deformation in shear flow

被引：12

作者：

Hua, Haobo ^{[1
]}

Li, Yibao ^{[2
]}

Shin, Jaemin ^{[1
]}

Song, Ha-kyu ^{[1
]}

Kim, Junseok ^{[1
]}

机构：

[1] Korea Univ, Dept Math, Seoul 136713, South Korea

[2] Yonsei Univ, Dept Computat Sci & Engn, Seoul 120749, South Korea

来源：

INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS | 2013年 / 27卷 / 8-10期

基金：

新加坡国家研究基金会;

关键词：

wall effect; immersed boundary method; shear flow; volume conserving; remeshing; droplet deformation; REYNOLDS-NUMBER MOTION; LEVEL-SET METHOD; BREAKUP; FLUID; DYNAMICS; INERTIA; VISCOSITY; MODEL;

D O I：

10.1080/10618562.2013.857406

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The dynamics of a single droplet under shear flow between two parallel plates is investigated by using the immersed boundary method. The immersed boundary method is appropriate for simulating the drop-ambient fluid interface. We apply a volume-conserving method using the normal vector of the surface to prevent mass loss of the droplet. In addition, we present a surface remeshing algorithm to cope with the distortion of droplet interface points caused by the shear flow. This mesh quality improvement in conjunction with the volume-conserving algorithm is particularly essential and critical for long time evolutions. We study the effect of wall confinement on the droplet dynamics. Numerical simulations show good agreement with previous experimental results and theoretical models.

引用

页码：317 / 331

页数：15

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