Electro-hydrodynamics of emulsion droplets: physical insights to applications

MS Abbasi, R Song, S Cho, J Lee - Micromachines, 2020 - mdpi.com
The field of droplet electrohydrodynamics (EHD) emerged with a seminal work of GI Taylor
in 1966, who presented the so-called leaky dielectric model (LDM) to predict the droplet …

Characterization of electrohydrodynamic drop-on-demand injection of viscoelastic fluids in pulsed voltage

H Gong, J Huang, J Wang, C Liang, W Guo… - Journal of Manufacturing …, 2023 - Elsevier
Electrohydrodynamic drop-on-demand (DOD) injection in pulsed voltage is a very promising
technique for fabricating nanostructures. However, it is still a challenge to achieve stable …

Electrohydrodynamics of confined two-dimensional liquid droplets in uniform electric field

S Santra, S Mandal, S Chakraborty - Physics of Fluids, 2018 - pubs.aip.org
In this study, the electrohydrodynamics of viscous droplets in a confined domain under the
action of a uniform electric field is investigated numerically. Considering both the phases to …

A simplified lattice Boltzmann model for two-phase electro-hydrodynamics flows and its application to simulations of droplet deformation in electric field

QZ Li, ZL Lu, Z Chen, C Shu, YY Liu, TQ Guo - Applied Mathematical …, 2023 - Elsevier
This paper proposes a numerical scheme within the lattice Boltzmann framework for
effective simulations of two-phase electro-hydrodynamic (EHD) flows, in which the simplified …

Electric field-induced pinch-off of a compound droplet in Poiseuille flow

S Santra, S Das, S Chakraborty - Physics of Fluids, 2019 - pubs.aip.org
We address the pinch-off dynamics of a compound droplet that is suspended in a carrier
fluid in a parallel plate microchannel. The droplet is subjected to a transverse electric field in …

The role of surface charge convection in the electrohydrodynamics and breakup of prolate drops

R Sengupta, LM Walker, AS Khair - Journal of Fluid Mechanics, 2017 - cambridge.org
The deformation of a weakly conducting,'leaky dielectric', drop in a density matched,
immiscible weakly conducting medium under a uniform direct current (DC) electric field is …

Effects of surfactant transport on electrodeformation of a viscous drop

H Nganguia, OS Pak, YN Young - Physical Review E, 2019 - APS
In this work we quantify the effects of surfactant transport on the deformation of a viscous
drop under a DC electric field. We study how convective and diffusive transport of surfactants …

AC electric field controlled non-Newtonian filament thinning and droplet formation on the microscale

Y Huang, YL Wang, TN Wong - Lab on a Chip, 2017 - pubs.rsc.org
Monodispersity and fast generation are innate advantages of microfluidic droplets. Other
than the normally adopted simple Newtonian fluids such as a water/oil emulsion system …

Breakup of a leaky dielectric drop in a uniform electric field

Q Dong, A Sau - Physical Review E, 2019 - APS
Electrohydrodynamic (EHD) breakup phenomena for a leaky dielectric drop suspended in
another immiscible viscous dielectric and subjected to a uniform electric field are examined …

A three-dimensional small-deformation theory for electrohydrodynamics of dielectric drops

D Das, D Saintillan - Journal of Fluid Mechanics, 2021 - cambridge.org
Electrohydrodynamics of drops is a classic fluid mechanical problem where deformations
and microscale flows are generated by application of an external electric field. In weak …