28 citations · 99 across the 11 of their papers we have counts for
11 papers
Evaporative thermo-fluidics and deposition patterns in surface-active droplets
Randeep Ravesh, A R Harikrishnan, Purbarun Dhar
We investigate the thermo solutal transport phenomena and deposition patterns during the evaporation of surfactant laden droplets experimentally and through theoretical scaling bas…
Surface declination governed asymmetric sessile droplet evaporation
Purbarun Dhar, Raghavendra Kumar Dwivedi, A R Harikrishnan
The article reports droplet evaporation kinetics on inclined substrates. Comprehensive experimental and theoretical analyses of the droplet evaporation behaviour for different subs…
Evaporation kinetics of ferrofluid droplets in magnetic field ambience
Ankur Chattopadhyay, Raghvendra Kumar Dwivedi, A R Harikrishnan +1
The present article discusses the physics and mechanics of evaporation of pendent, aqueous ferrofluid droplets and modulation of the same by external magnetic field. We show experi…
Interplay of substrate inclination and wettability on droplet impact dynamics
Nilamani Sahoo, Gargi Khurana, A R Harikrishnan +2
Experimental investigations were carried out to elucidate the role of surface wettability and inclination on the post impact dynamics of droplets. Maximum spreading diameter and sp…
Competitive electrohydrodynamic and electrosolutal advection arrests evaporation kinetics of droplets
Vivek Jaiswal, Shubham Singh, A R Harikrishnan +1
The present article reports the hitherto unreported phenomenon of arrested evaporation dynamics in pendent droplets in an electric field ambience. The evaporation kinetics of penda…
Streamer evolution arrest governed amplified AC breakdown strength of graphene and CNT colloids
Purbarun Dhar, Ankur Chattopadhyay, Lakshmi Sirisha Maganti +1
The present article experimentally explores the concept of large improving the AC dielectric breakdown strength of insulating mineral oils by the addition of trace amounts of graph…
Electromagnetic field orientation and dynamics governs advection characteristics within pendent droplets
Purbarun Dhar, Vivek Jaiswal, A R Harikrishnan
The article reports the domineering governing role played by the direction of electric and magnetic fields on the internal advection pattern and strength within salt solution penda…
Amplifying thermal conduction calibre of nanocolloids employing induced electrophoresis
Purbarun Dhar, Lakshmi Sirisha Maganti, A R Harikrishnan +1
Electrophoresis has been shown as a novel methodology to enhance heat conduction capabilities of nanocolloidal dispersions. A thoroughly designed experimental system has been envis…
Internal advection dynamics in sessile droplets depend on the curvature of superhydrophobic surfaces
Gargi Khurana, A R Harikrishnan, Vivek Jaiswal +1
The article demonstrates that the internal circulation velocity and patterns in sessile droplets on superhydrophobic surfaces is governed by the surface curvature. Particle Image V…
Magnetohydrodynamics and magneto-solutal transport mediated evaporation dynamics in paramagnetic pendent droplets under field stimulus
Vivek Jaiswal, Raghvendra Kumar Dwivedi, A R Harikrishnan +1
Evaporation kinetics of pendant droplets is an area of immense importance in several applications in addition to possessing rich fluid and thermal transport physics. The present ar…
Effects of interplay of nanoparticles, surfactants and base fluid on the interfacial tension of nanocolloids
A R Harikrishnan, Purbarun Dhar, PK Agnihotri +2
A systematically designed study has been conducted to understand and clearly demarcate the degree of contribution by the constituting elements to the surface tension of nanocolloid…