15 citations · 34 across the 12 of their papers we have counts for
12 papers
Translation dynamics of evaporating sessile binary-mixture droplet populations
Debarshi Debnath, Anna Malachtari, George Karapetsas +5
The translation dynamics of two binary mixture droplets is investigated theoretically and is corroborated with experiments. The proposed model accounts for the effects of Marangoni…
Asymmetric freezing of a sliding droplet on an inclined surface
Sivanandan Kavuri, George Karapetsas, Chander Shekhar Sharma +1
We investigate the asymmetric freezing of a liquid droplet sliding on an inclined cold surface using numerical simulations based on the lubrication approximation. The combined effe…
Evaporation of sessile drops on a heated superhydrophobic substrate
Sivanandan Kavuri, Chander Shekhar Sharma, George Karapetsas +1
We experimentally investigate the evaporation dynamics of sessile water droplets on a micro-nano textured superhydrophobic aluminum substrate at various temperatures using shadowgr…
Evaporation-driven coalescence of two droplets undergoing freezing
Sivanandan Kavuri, George Karapetsas, Chander Shekhar Sharma +1
We examine the evaporation-induced coalescence of two droplets undergoing freezing by conducting numerical simulations employing the lubrication approximation. When two sessile dro…
Flow Structure near Three Phase Contact Line of Low-Contact-Angle Evaporating Droplets
Zhenying Wang, George Karapetsas, Prashant Valluri +1
Flow structure near three phase contact line (TPCL) of evaporating liquids plays a significant role in liquid wetting and dewetting, liquid film evaporation and boiling, etc. Despi…
Freezing of sessile droplet and frost halo formation
Sivanandan Kavuri, George Karapetsas, Chander Shekhar Sharma +1
The freezing of a sessile droplet unveils fascinating physics, characterised by the emergence of a frost halo on the underlying substrate, the progression of the liquid-ice interfa…
Intricate Role of Thermal Properties and Volatility in Droplet Spreading: A Generalization to Tanner's Law
Zhenying Wang, George Karapetsas, Prashant Valluri +1
Droplet spreading is ubiquitous and plays a significant role in liquid-based energy systems, thermal management devices, and microfluidics. While the spreading of non-volatile drop…
Dynamics of the interaction of multiple evaporating droplets on compliant substrates
Anna Malachtari, George Karapetsas
The dynamics of the interaction of a system of two thin volatile liquid droplets resting on a soft viscoelastic solid substrate are investigated theoretically. The developed model…
Physics-agnostic and Physics-infused machine learning for thin films flows: modeling, and predictions from small data
Cristina P. Martin-Linares, Yorgos M. Psarellis, Georgios Karapetsas +2
Numerical simulations of multiphase flows are crucial in numerous engineering applications, but are often limited by the computationally demanding solution of the Navier-Stokes (NS…
Open-source finite volume solvers for multiphase (n-phase) flows involving either Newtonian or non-Newtonian complex fluids
Chris Dritselis, George Karapetsas
Two new control volume solvers multiFluidInterFoam and rheoMultiFluidInterFoam are presented for the simulation of Newtonian and non-Newtonian n-phase flows, respectively, fully ac…
Spreading and retraction dynamics of sessileevaporating droplets comprising volatile binary mixtures
A. G. L. Williams. G. Karapetsas, D. Mamalis, K. Sefiane +2
The dynamics of thin volatile droplets comprising of binary mixtures deposited on a heated substrate are investigated. Using lubrication theory, we develop a novel one-sided model…
Effect of substrate topography, material wettability and dielectric thickness on reversible electrowetting
Nikolaos T. Chamakos, George Karapetsas, Athanasios G. Papathanasiou
Recent experiments by Kavousanakis et al., Langmuir, 2018 [1], showed that reversible electrowetting on superhydrophobic surfaces can be achieved by using a thick solid dielectric…