DROPLET DEFORMATION AND BREAKUP DUE TO SHEAR FLOW AND ELECTRIC FIELD IN A CONFINED GEOMETRY

被引：0

作者：

Singh, Rattandeep ^{[1
]}

Bahga, Supreet Singh ^{[1
]}

Gupta, Amit ^{[1
]}

机构：

[1] Indian Inst Technol Delhi, Dept Mech Engn, Hauz Khas, New Delhi 110016, India

来源：

PROCEEDINGS OF THE ASME 16TH INTERNATIONAL CONFERENCE ON NANOCHANNELS, MICROCHANNELS, AND MINICHANNELS, 2018 | 2016年

关键词：

VISCOUS DROPS; FLUID; ELECTROHYDRODYNAMICS; CIRCULATION; VISCOSITY;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this work, the behavior of a spherical droplet suspended in a confined shear flow and subjected to an external electric field has been investigated. The continuous and dispersed fluids are treated as leaky dielectrics. The subsequent flow has been computed numerically using a low spurious current, multi component lattice Boltzmann method coupled with a leaky dielectric model. The numerical model has been validated by analyzing droplet deformation due to shear flow and electric field separately. The results obtained are shown to be in good agreement with earlier published analytical solutions. Droplet elongation predicted by our simulations rises with increase in the electric field strength. Beyond a threshold value of electric field, breakup of droplet into smaller droplets is observed. Droplet breakup in case of fluids with equal viscosity is observed at low electric field strength as compared to low viscosity ratio drops.

引用

页数：10

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