Effects of junction angle and viscosity ratio on droplet formation in microfluidic cross-junction

IL Ngo, S Woo Joo, C Byon - Journal of Fluids …, 2016 - asmedigitalcollection.asme.org
This study describes the dynamic behaviors of droplet formation in microfluidic cross-
junction devices (MFCDs) based on a two-dimensional numerical model using the volume of …

Electric field mediated spraying of miniaturized droplets inside microchannel

S Timung, J Chaudhuri, MP Borthakur… - …, 2017 - Wiley Online Library
We report a facile and noninvasive way to disintegrate a microdroplet into a string of further
miniaturized ones under the influence of an external electrohydrodynamic field inside a …

Discrete electric field mediated droplet splitting in microchannels: Fission, Cascade, and Rayleigh modes

J Chaudhuri, S Timung, CB Dandamudi… - …, 2017 - Wiley Online Library
Numerical simulations supplemented by experiments together uncovered that strategic
integration of discrete electric fields in a non‐invasive manner could substantially …

Electric field mediated squeezing to bending transitions of interfacial instabilities for digitization and mixing of two-phase microflows

J Chaudhuri, TK Mandal, D Bandyopadhyay - Physics of Fluids, 2019 - pubs.aip.org
Electric field mediated instabilities in a tri-layer oil-water flow inside a microchannel have
been explored with the help of the analytical models and computational fluid dynamic …

A coupled continuum-statistical model to predict interfacial deformation under an external field

J Chaudhuri, D Bandyopadhyay - Journal of Colloid and Interface Science, 2021 - Elsevier
Hypothesis Coupling the continuum approach with a statistical one may help in the
development of a generic thermodynamic model to theoretically analyse the variations of …

Microfluidic electrolyzers for production and separation of hydrogen from sea water using naturally abundant solar energy

S Rarotra, TK Mandal, D Bandyopadhyay - Energy Technology, 2017 - Wiley Online Library
We report the design and development of a microfluidic electrolyzer for the continuous
production and in situ separation of hydrogen fuel. A series of photovoltaic cells was …

Steady and oscillatory Lorentz-force-induced transport and digitization of two-phase microflows

J Chaudhuri, TK Mandal, D Bandyopadhyay - Physical Review Applied, 2018 - APS
We explore pumping and digitization of two-phase flow patterns inside a microchannel with
the help of a unidirectional and oscillating Lorentz force. For this purpose, an electric field …

Numerical simulations of bubble formation from a submerged orifice and a needle: The effects of an alternating electric field

S Sunder, G Tomar - European Journal of Mechanics-B/Fluids, 2016 - Elsevier
In many applications, such as bubble column reactors, electric field is employed to provide a
greater control on the sizes of bubbles forming at orifices and needles. In this study, we …

Non‐coalescence behavior of neutral droplets suspended in oil under a direct current electric field

X Huang, L He, X Luo, H Yin, D Yang - AIChE Journal, 2019 - Wiley Online Library
The excessive electric field gives rise to droplet non‐coalescence and droplet chains in the
electric dehydrator, which severely deteriorates oil–water separation efficiency and even …

Linearized lattice Boltzmann method for time periodic electro-osmotic flows in micro-and nanochannels

Y Shi, H Kang, Y Ren, Y Chan - Physics of Fluids, 2020 - pubs.aip.org
Time periodic electro-osmosis (TPEO) is a popular means to pump liquids or manipulate
species of interest in today's micro-and nanofluidic devices. In this article, we propose a …