Transient solution for droplet deformation under electric fields

被引：60

作者：

Zhang, Jia ^{[1
]}

Zahn, Jeffery D. ^{[2
]}

Lin, Hao ^{[1
]}

机构：

[1] Rutgers State Univ, Dept Mech & Aerosp Engn, Piscataway, NJ 08854 USA

[2] Rutgers State Univ, Dept Biomed Engn, Piscataway, NJ 08854 USA

来源：

PHYSICAL REVIEW E | 2013年 / 87卷 / 04期

基金：

美国国家科学基金会;

关键词：

ELECTROHYDRODYNAMIC DEFORMATION; DIELECTRIC DROP; BREAKUP; STEADY; ATOMIZATION; BEHAVIOR; LIQUIDS; SHEAR; BURST;

D O I：

10.1103/PhysRevE.87.043008

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A transient analysis to quantify droplet deformation under DC electric fields is presented. The full Taylor-Melcher leaky dielectric model is employed where the charge relaxation time is considered to be finite. The droplet is assumed to be spheroidal in shape for all times. The main result is an ODE governing the evolution of the droplet aspect ratio. The model is validated by extensively comparing predicted deformation with both previous theoretical and numerical studies, and with experimental data. Furthermore, the effects of parameters and stresses on deformation characteristics are systematically analyzed taking advantage of the explicit formulas on their contributions. The theoretical framework can be extended to study similar problems, e. g., vesicle electrodeformation and relaxation. DOI: 10.1103/PhysRevE.87.043008

引用

页数：9

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