Ferrohydrodynamics governed evaporation phenomenology of sessile droplets

A Kaushal, V Mehandia, P Dhar - Physics of Fluids, 2021 - pubs.aip.org
In this article, we report the morphing of the evaporation kinetics of paramagnetic saline
sessile droplets in the presence of a magnetic field stimulus. We explore the evaporation …

Thermo-capillarity in microfluidic binary systems via phase modulated sinusoidal thermal stimuli

S Agrawal, PK Das, P Dhar - Physics of Fluids, 2022 - pubs.aip.org
In this article, we have explored the theoretical aspects of thermo-capillarity driven
hydrodynamics at the interface of an immiscible binary-fluid system within a microfluidic …

Ferro-advection aided evaporation kinetics of ferrofluid droplets in magnetic field ambience

A Chattopadhyay, RK Dwivedi, AR Harikrishnan… - Physics of …, 2020 - pubs.aip.org
The present article discusses the physics and mechanics of evaporation of pendant,
aqueous ferrofluid droplets, and modulation of the same by an external magnetic field. We …

Morphing evaporative heat and mass transport of nanofluid droplets by electric field

P Dhar, A Chattopadhyay, DK Agarwal - Experimental Thermal and Fluid …, 2024 - Elsevier
In this research, evaporation behaviour of pendant droplets of stable nanocolloidal
dispersions in the presence of an electric field is probed, both experimentally and …

Competitive electrohydrodynamic and electrosolutal advection arrests evaporation kinetics of droplets

V Jaiswal, S Singh, AR Harikrishnan, P Dhar - Langmuir, 2020 - ACS Publications
This article reports the hitherto unreported phenomenon of arrested evaporation dynamics in
pendant droplets because of electric field stimulus. The evaporation kinetics of pendant …

Regulating complex fluid sessile droplet evaporation kinetics by suppression of internal electro-convection

A Kaushal, V Mehandia, P Dhar - Colloids and Surfaces A …, 2022 - Elsevier
We report the phenomenology of suppression of the evaporation kinetics of electrically
conducting saline sessile droplets in the presence of transverse electric field stimulus. Our …

Influence of competitive electro-and ferro-hydrodynamics on droplet vaporization phenomenology

P Dhar, V Jaiswal, H Chate, LS Maganti - Microfluidics and Nanofluidics, 2022 - Springer
Modification and control of the vaporization kinetics of microfluidic droplets can find
utilitarian implications in several scientific and technological applications. The article reports …

Oscillating evaporation of pendant droplets under the action of ionic wind

J Wang, T Zhao, J Tian, H Xu, L Zuo, W Zhang… - Colloids and Surfaces A …, 2022 - Elsevier
Evaporation of charged droplets is the fundamental aspect of many technologies, such as
the electrospray cooling, spray drying, and ink-jet printing. In this study, the ionic wind flow …

Control and modulation of droplet vaporization rates via competing ferro-and electro-hydrodynamics

P Dhar, V Jaiswal, H Chate, LS Maganti - arXiv preprint arXiv:2006.00750, 2020 - arxiv.org
Modification and control over the vaporization kinetics of microfluidic droplets may have
strong utilitarian implications in several scientific and technological applications. The article …

Advection kinetics induced self-assembly of colloidal nanoflakes into microscale floral structures

P Dhar - Fluid Dynamics Research, 2020 - iopscience.iop.org
The article explores the governing role of the internal soluto-thermal hydrodynamics and
advective transport within sessile colloidal droplets on the self-assembly of nanostructures to …