Regimes of thermocapillary migration of droplets under partial wetting conditions

JM Gomba, GM Homsy - Journal of Fluid Mechanics, 2010 - cambridge.org
We study the thermocapillary migration of two-dimensional droplets of partially wetting
liquids on a non-uniform heated substrate. An equation for the thickness profile of the droplet …

Gravity-driven fingering simulations for a thin liquid film flowing down the outside of a vertical cylinder

LC Mayo, SW McCue, TJ Moroney - … Review E—Statistical, Nonlinear, and Soft …, 2013 - APS
A numerical study is presented to examine the fingering instability of a gravity-driven thin
liquid film flowing down the outer wall of a vertical cylinder. The lubrication approximation is …

Wavelength selection in Hele-Shaw flows: A maximum-amplitude criterion

EO Dias, JA Miranda - Physical Review E—Statistical, Nonlinear, and Soft …, 2013 - APS
As in most interfacial flow problems, the standard theoretical procedure to establish
wavelength selection in the viscous fingering instability is to maximize the linear growth rate …

Thermocapillary migration of droplets under molecular and gravitational forces

JR Mac Intyre, JM Gomba, CA Perazzo… - Journal of Fluid …, 2018 - cambridge.org
We study the thermocapillary migration of two-dimensional droplets of partially wetting
liquids on a non-uniformly heated surface. The effect of a non-zero contact angle is imposed …

Contact line motion in axial thermocapillary outward flow

AD Torres, JR Mac Intyre, JM Gomba… - Journal of Fluid …, 2020 - cambridge.org
We study the contact line dynamics of a viscous droplet deposited at the centre of a
substrate subject to an axial thermal gradient. The temperature of the substrate decreases …

The effect of surface tension on the gravity-driven thin film flow of Newtonian and power-law fluids

B Hu, SL Kieweg - Computers & fluids, 2012 - Elsevier
Gravity-driven thin film flow is of importance in many fields, as well as for the design of
polymeric drug delivery vehicles, such as anti-HIV topical microbicides. There have been …

Thin liquid films in a funnel

TS Lin, JA Dijksman, L Kondic - Journal of Fluid Mechanics, 2021 - cambridge.org
We explore flow of a completely wetting fluid in a funnel, with particular focus on contact line
instabilities at the fluid front. While the flow in a funnel may be related to a number of other …

Analytical solutions for partially wetting two-dimensional droplets

JM Gomba, GM Homsy - Langmuir, 2009 - ACS Publications
We present a new analytical solution for the static shape of a two-dimensional droplet in
equilibrium with a surrounding thin film on a solid substrate. The modeling includes the …

Linear stability analysis of a droplet under an axisymmetric thermal gradient

RA Mansilla, CA Perazzo, JM Gomba - Physics of Fluids, 2024 - pubs.aip.org
We study the linear stability of a droplet placed at the center of a horizontal disk under the
effect of surface stress promoted by an axisymmetric thermal gradient. Since the fluid volume …

Dynamics and stability of three-dimensional ferrofluid films in a magnetic field

D Conroy, OK Matar - Journal of Engineering Mathematics, 2017 - Springer
We consider the interfacial dynamics of a thin, ferrofluid film flowing down an inclined
substrate, under the action of a magnetic field, bounded above by an inviscid gas. The fluid …