Deformation of a droplet in a particulate shear flow

被引:13
|
作者
Ardekani, A. M. [1 ]
Dabiri, S. [1 ]
Rangel, R. H. [1 ]
机构
[1] Univ Calif Irvine, Dept Mech & Aerosp Engn, Irvine, CA 92697 USA
基金
美国国家科学基金会;
关键词
capillarity; drops; flow simulation; shear flow; surface tension; LOW REYNOLDS NUMBER; VISCOUS-FLUID; LIQUID DROPS; BREAKUP; PARTICLE; BUBBLES; SHAPE;
D O I
10.1063/1.3205446
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
A numerical simulation using a distributed-Lagrange-multiplier-based computational method is conducted in order to investigate the deformation and breakup of a droplet in a particulate shear flow. A level-set method is used to track the interface and model the surface tension. The results show that the presence of particles leads to larger droplet deformation and a perforation in the center of the droplet. It is found that the critical Stokes number above which a perforation occurs increases linearly with the inverse of the capillary number and viscosity ratio.
引用
收藏
页数:8
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