Thermocapillary oscillations in liquid thin films: interplay of substrate topography and thermal wave

S Agrawal, PK Das, P Dhar - … Communications in Heat and Mass Transfer, 2023 - Elsevier
Liquid flows over patterned and/or contoured substrates is utilized in many practical
applications eg, lubrication flow in MEMS (micro-electromechanical systems)/NEMS (nano …

External Stefan and Internal Marangoni Thermo-Fluid Dynamics for Evaporating Capillary Bridges

A Paul, A Roy, P Dhar - Langmuir, 2024 - ACS Publications
We probe the evaporation mechanisms of wettability-moderated, confined capillary bridges
and bulges. For the first time, we explore the internal Marangoni hydrodynamics and …

Marangoni Flows in a Bilayer Liquid Microfilm Interface on Wave-Contoured Hot Substrates

S Agrawal, PK Das, P Dhar - Langmuir, 2023 - ACS Publications
This study explores the thermal Marangoni hydrodynamics in an immiscible, binary-liquid
thin-film system, which is open to the gas phase at the top and rests on a heated substrate …

Oscillatory electro-magneto-kinetics of confined-Stokes-second-problem micro-flows

NS Bera, P Dhar - Physics of Fluids, 2023 - pubs.aip.org
We semi-analytically investigate the electro-magneto-hydrodynamics of time periodic
electroosmotic flow of a Newtonian electrolyte through microchannels with oscillating …

Thermo-capillarity of immiscible binary fluids within serpentine micro-confinements

S Agrawal, PK Das, P Dhar - Physics of Fluids, 2024 - pubs.aip.org
The thermocapillary flow of multiple liquid layers over contoured substrates finds
applications in many industrial phenomena via micro-electromechanical systems/nano …