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 …

Modeling the deformation of a surfactant-covered droplet under the combined influence of electric field and shear flow

J Zhang, H Liu, X Zhang - Physics of Fluids, 2021 - pubs.aip.org
A surfactant-covered droplet subject to both electric field and shear flow is studied using a
lattice Boltzmann and finite difference hybrid method, which breaks the limitation of …

Modelling a surfactant-covered droplet on a solid surface in three-dimensional shear flow

H Liu, J Zhang, Y Ba, N Wang, L Wu - Journal of Fluid Mechanics, 2020 - cambridge.org
A surfactant-covered droplet on a solid surface subject to a three-dimensional shear flow is
studied using a lattice-Boltzmann and finite-difference hybrid method, which allows for the …

Wettability-mediated dynamics of two-phase flow in microfluidic T-junction

MP Boruah, A Sarker, PR Randive, S Pati… - Physics of …, 2018 - pubs.aip.org
Fundamental understanding of two-phase flow and the concomitant implications of wall
wettability and viscosity are critical in areas like microfluidics and lab on chip applications. In …

Slippery rheotaxis: New regimes for guiding wall-bound microswimmers

S Ghosh, A Poddar - Journal of Fluid Mechanics, 2023 - cambridge.org
The near-surface locomotion of microswimmers under the action of background flows has
been studied extensively, whereas the intervening effects of complex surface properties …

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 …

Electric-field-mediated morpho-dynamic evolution in drop–drop coalescence phenomena in the inertio-capillary regime

N Behera, S Chakraborty - Journal of Fluid Mechanics, 2023 - cambridge.org
When two drops collide, they may either exhibit complete coalescence or selectively
generate secondary drops, depending on their relative sizes and physical properties, as …

Electrohydrodynamic interaction between droplet pairs in a confined shear flow

S Santra, D Sen, S Das, S Chakraborty - Physics of Fluids, 2019 - pubs.aip.org
This study deals with electrohydrodynamic interactions between two deformable droplets in
a confined shear flow. We have investigated the effect of the channel confinement and the …

Numerical investigation of droplet generation within a microfluidic T-junction with semicylindrical obstacle

AJ Nath, DK Deka, S Pati - Journal of Fluids …, 2023 - asmedigitalcollection.asme.org
We outline a comprehensive computational physics-based investigation of droplet
generation characteristics within a double inlet microfluidic T-junction with a semicylindrical …

Surface entrapment of micromotors by a background temperature field

H Damor, S Ghosh, A Poddar - Physics of Fluids, 2023 - pubs.aip.org
The fabrication of self-propelling micromotors and the study of their propulsion strategies
have gained attention due to their wide range of applications in the medical, engineering …