Deformation and breakup of dispersed phase droplets in uniform electric field

doi:10.3969/j.issn.0438-1157.2014.03.011

CIESC Journal ›› 2014, Vol. 65 ›› Issue (3): 843-848.DOI: 10.3969/j.issn.0438-1157.2014.03.011

Previous Articles Next Articles

Deformation and breakup of dispersed phase droplets in uniform electric field

LIANG Meng¹, LI Qing¹, WANG Kuisheng¹, LIU Jingye², CHEN Jiaqing³

1 College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
2 College of Science, Beijing University of Chemical Technology, Beijing 100029, China;
3 College of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China

Received:2013-05-28 Revised:2013-08-28 Online:2014-03-05 Published:2014-03-05
Supported by:
supported by the National Natural Science Foundation of China (51076007/E060203), the Central Basic Research Foundation and the Construction Project between Beijing and Central University.

匀强电场作用下分散相液滴的变形和破裂

梁猛¹, 李青¹, 王奎升¹, 刘竞业², 陈家庆³

1 北京化工大学机电工程学院, 北京 100029;
2 北京化工大学理学院, 北京 100029;
3 北京石油化工学院机械工程学院, 北京 102617

通讯作者: 王奎升
作者简介:梁猛（1988—），男，硕士研究生。
基金资助:
国家自然科学基金项目（51076007/E060203）；中央基础研究基金项目；北京市与中央高校共建项目。

Abstract

Abstract: Through coupling hydrodynamics and electrostatics, a phase field method based on Cahn-Hilliard formulation was used to predict the deformation and breakup of dispersed phase droplets in a uniform electric field. The distribution of charge density, electric field strength and electric field force on the droplet surface as well as the distribution of flow field and electric field were studied from the micro-perspective. The micro-droplet deformation mechanism was established. The influence of electric field strength, droplet diameter and interfacial tension on the deformation was predicted by numerical simulation. The results showed that strong electric field intensity, large droplet diameter or small interfacial tension could cause larger degree of droplet deformation. The droplet mainly ruptured from its middle or the two ends. Rupture mainly depended on the physical properties of the continuous phase and dispersed phase. The above study would provide a theoretical basis for complex electric demulsification.

Key words: phase field method, numerical simulation, deformation, breakup, uniform electric field, interface, mathematics model

摘要： 基于Cahn-Hilliard方程的相场方法，建立了在匀强电场作用下液滴的变形和破裂行为模型。从微观角度研究分散相液滴变形过程中电荷密度、电场强度和电场力的分布规律以及流场和电场分布，探讨了微观液滴变形机理；采用数值模拟方法研究了电场强度、液滴直径和界面张力对液滴变形的影响，结果表明电场强度越强，液滴直径越大，界面张力越小，液滴变形量越大；分析了液滴的两种主要破裂方式，其破裂主要取决于连续相和分散相物性条件，为电破乳技术提供了理论基础。

关键词: 相场方法, 数值模拟, 变形, 破裂, 匀强电场, 界面, 数学模型

CLC Number:

TE624.1

LIANG Meng, LI Qing, WANG Kuisheng, LIU Jingye, CHEN Jiaqing. Deformation and breakup of dispersed phase droplets in uniform electric field[J]. CIESC Journal, 2014, 65(3): 843-848.

梁猛, 李青, 王奎升, 刘竞业, 陈家庆. 匀强电场作用下分散相液滴的变形和破裂[J]. 化工学报, 2014, 65(3): 843-848.

References 21

[1]	Zhang Jian(张建), Dong Shouping(董守平), Gan Qingrong(甘琴容). Dynamic model of liquid droplets of water-in-oil emulsions with high-frequency pulsating electrical field[J]. Journal of Chemical Industry and Engineering (China) (化工学报),2007,58(4):975-880
[2]	John S Eow, Mojtaba Ghadiri, Adel O Sharif, Trevor J Williams. Electrostatic enhancement of coalescence of water droplets in oil a review of the current understanding[J]. Chemical Engineering Journal,2001,84(3):173-192
[3]	John S Eow, Mojtaba Ghadiri. Electrostatic enhancement of coalescence of water droplets in oil: a review of the technology[J]. Chemical Engineering Journal, 2002, 85(2): 357-368
[4]	Sun Zhiqian(孙治谦), Jin Youhai(金有海),Wang Lei(王磊), Wang Zhenbo(王振波). Impact of high-frequency pulse electric field parameter on polarization and deformation of water droplet[J]. CIESC Journal(化工学报),2012,64(10):3113-3118
[5]	Rayat K, Feyzi F. Influence of external electric field on the polarity of water droplets in water-in-oil emulsion phase transition[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2011, 375(1): 61-67
[6]	Taylor G I. The viscosity of a fluid containing small drops of another fluid[J]. Proceedings of the Royal Society of London, Series A, 1932, 138(834): 41-48
[7]	Taylor G I. The formation of emulsions in definable fields of flow[J]. Proceedings of the Royal Society of London, Series A, 1934, 146(858): 501-523
[8]	Taylor G. Studies in electrohydrodynamics(Ⅰ):The circulation produced in a drop by electrical field[J]. Proceedings of the Royal Society of London, Series A, Mathematical and Physical Sciences, 1966, 291(1425): 159-166
[9]	Taylor S E. Theory and practice of electrically-enhanced phase separation of water-in-oil emulsions[J]. Chemical Engineering Research & Design, 1996, 74(5): 526-540
[10]	Klingenberg D J, van Swol F, Zukoski C F. The small shear rate response of electrorheological suspensions(Ⅰ): Simulation in the point-dipole limit[J]. The Journal of Chemical Physics, 1991, 94(9): 6160-6170
[11]	Klingenberg D J, van Swol F, Zukoski C F. The small shear rate response of electrorheological suspensions(Ⅱ): Extension beyond the point-dipole limit[J]. The Journal of Chemical Physics, 1991, 94(9): 6170-6178
[12]	Siu Y L, Wan J T K, Yu K W. Interparticle force in polydisperse electrorheological fluids: beyond the dipole approximation[J]. Computer Physics Communications, 2001, 142(1): 446-452
[13]	Eow J S, Ghadiri M. Motion, deformation and break-up of aqueous drops in oils under high electric field strengths[J]. Chemical Engineering and Processing: Process Intensification, 2003, 42(4): 259-272
[14]	Eow J S, Ghadiri M, Sharif A. Experimental studies of deformation and break-up of aqueous drops in high electric fields[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2003, 225(1): 193-210
[15]	Bailes P J, Larkai S K L. Experimental investigation into the use of high voltage D C. Fields for liquid phase separation[J]. Transactions of the Institution of Chemical Engineers, 1981, 59(A): 229-237
[16]	Bailes P J, Lee J G M, Parsons A R. An experimental investigation into the motion of a single drop in a pulsed DC electric field[J]. Chemical Engineering Research and Design, 2000, 78(3): 499-505
[17]	Wang Liang(王亮),Feng Yongxun(冯永训),Dong Shouping(董守平),Zhang Jian(张建),Guo Changhui(郭长会),Yu Zhongjun(余忠俊). Investigation on behavior of dispersed phase droplets for the electric demulsification[J]. Journal of Experiments in Fluid Mechanics(实验流体力学),2010,24(4): 28-33
[18]	Less S, Hannisdal A, Sjöblom J. An electrorheological study on the behavior of water-in-crude oil emulsions under influence of a DC electric field and different flow conditions[J]. Journal of Dispersion Science and Technology, 2008, 29(1): 106-114
[19]	Chiesa M, Melheim J A, Pedersen A, Ingebrigtsen S, Berg G. Forces acting on water droplets falling in oil under the influence of an electric field: numerical predictions versus experimental observations[J]. European Journal of Mechanics-B/Fluids, 2005, 24(6): 717-732
[20]	Lin Y, Skjetne P, Carlson A. A phase field model for multiphase electro-hydrodynamic flow[J]. International Journal of Multiphase Flow, 2012,45(1):1-11
[21]	Dong Zhiguang(董智广), Cheng Daolai(程道来), Li Ruiyang(李瑞阳). An investigation of bubble behaviors in nonuniform electric field[J]. Chemical Industry and Engineering Progress(化工进展), 2012,31(11):2420-2423

Deformation and breakup of dispersed phase droplets in uniform electric field

匀强电场作用下分散相液滴的变形和破裂

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References 21

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	Zhanyu YE, He SHAN, Zhenyuan XU. Performance simulation of paper folding-like evaporator for solar evaporation systems [J]. CIESC Journal, 2023, 74(S1): 132-140.
[2]	Xiaoqing ZHOU, Chunyu LI, Guang YANG, Aifeng CAI, Jingyi WU. Icing kinetics and mechanism of droplet impinging on supercooled corrugated plates with different curvature [J]. CIESC Journal, 2023, 74(S1): 141-153.
[3]	Lisen BI, Bin LIU, Hengxiang HU, Tao ZENG, Zhuorui LI, Jianfei SONG, Hanming WU. Molecular dynamics study on evaporation modes of nanodroplets at rough interfaces [J]. CIESC Journal, 2023, 74(S1): 172-178.
[4]	Yifei ZHANG, Fangchen LIU, Shuangxing ZHANG, Wenjing DU. Performance analysis of printed circuit heat exchanger for supercritical carbon dioxide [J]. CIESC Journal, 2023, 74(S1): 183-190.
[5]	Zhiguo WANG, Meng XUE, Yushuang DONG, Tianzhen ZHANG, Xiaokai QIN, Qiang HAN. Numerical simulation and analysis of geothermal rock mass heat flow coupling based on fracture roughness characterization method [J]. CIESC Journal, 2023, 74(S1): 223-234.
[6]	Jiahao SONG, Wen WANG. Study on coupling operation characteristics of Stirling engine and high temperature heat pipe [J]. CIESC Journal, 2023, 74(S1): 287-294.
[7]	Siyu ZHANG, Yonggao YIN, Pengqi JIA, Wei YE. Study on seasonal thermal energy storage characteristics of double U-shaped buried pipe group [J]. CIESC Journal, 2023, 74(S1): 295-301.
[8]	Junfeng LU, Huaiyu SUN, Yanlei WANG, Hongyan HE. Molecular understanding of interfacial polarization and its effect on ionic liquid hydrogen bonds [J]. CIESC Journal, 2023, 74(9): 3665-3680.
[9]	Song HE, Qiaomai LIU, Guangshuo XIE, Simin WANG, Juan XIAO. Two-phase flow simulation and surrogate-assisted optimization of gas film drag reduction in high-concentration coal-water slurry pipeline [J]. CIESC Journal, 2023, 74(9): 3766-3774.
[10]	Yu FU, Xingchong LIU, Hanyu WANG, Haimin LI, Yafei NI, Wenjing ZOU, Yue LEI, Yongshan PENG. Research on F₃EACl modification layer for improving performance of perovskite solar cells [J]. CIESC Journal, 2023, 74(8): 3554-3563.
[11]	Xiaosong CHENG, Yonggao YIN, Chunwen CHE. Performance comparison of different working pairs on a liquid desiccant dehumidification system with vacuum regeneration [J]. CIESC Journal, 2023, 74(8): 3494-3501.
[12]	Wenzhu LIU, Heming YUN, Baoxue WANG, Mingzhe HU, Chonglong ZHONG. Research on topology optimization of microchannel based on field synergy and entransy dissipation [J]. CIESC Journal, 2023, 74(8): 3329-3341.
[13]	Rui HONG, Baoqiang YUAN, Wenjing DU. Analysis on mechanism of heat transfer deterioration of supercritical carbon dioxide in vertical upward tube [J]. CIESC Journal, 2023, 74(8): 3309-3319.
[14]	Lei XING, Chunyu MIAO, Minghu JIANG, Lixin ZHAO, Xinya LI. Optimal design and performance analysis of downhole micro gas-liquid hydrocyclone [J]. CIESC Journal, 2023, 74(8): 3394-3406.
[15]	Dian LIN, Guomei JIANG, Xiubin XU, Bo ZHAO, Dongmei LIU, Xu WU. Preparation and drag reduction effect of silicon-based liquid-like anti-crude-oil-adhesion coatings [J]. CIESC Journal, 2023, 74(8): 3438-3445.