Publications related to Capillary length

Stability of a liquid layer draining around a horizontal cylinder: Interplay of capillary and gravity forces

François Gallaire, Shahab Eghbali, Simeon Vladimirov Djambov

We study the drainage of a viscous liquid film coating the outside of a solid horizontal cylinder, where gravity acts vertically. We focus on the limit of large Ohnesorge numbers Oh, where inertia is negligible compared to viscous effects. We first study t ...

Amer Physical Soc2024

The Three-Phase Contact Potential Difference Modulates the Water Surface Charge

Aleksandra Radenovic, Andrei Kiselev, Vasily Artemov, Roman Doronin

The surface charge of an open water surface is crucialfor solvationphenomena and interfacial processes in aqueous systems. However, themagnitude of the charge is controversial, and the physical mechanismof charging remains incompletely understood. Here we ...

AMER CHEMICAL SOC2023

The Three-Phase Contact Potential Difference Modulates the Water Surface Charge

Aleksandra Radenovic, Andrei Kiselev, Vasily Artemov, Roman Doronin

The surface charge of an open water surface is crucialfor solvationphenomena and interfacial processes in aqueous systems. However, themagnitude of the charge is controversial, and the physical mechanismof charging remains incompletely understood. Here we ...

AMER CHEMICAL SOC2023

Influence of Sphericity on Surface Termination of Icosahedral Colloidal Clusters

Esther Amstad

Colloids self-organize into icosahedral clusters composed of a Mackay core and an anti-Mackay shell under spherical confinement to minimize the free energy. This study explores the variation of surface arrangements of colloids in icosahedral clusters, focu ...

Weinheim2023

Dynamics of cavitation bubbles near granular boundaries

Mohamed Farhat, Davide Bernardo Preso, Armand Baptiste Sieber

We study the dynamics of a cavitation bubble near beds of sand of different grain sizes. We use high-speed imaging to observe the motion of the bubble and the sand for different values of the stand-off parameter gamma (dimensionless bubble-boundary distanc ...

CAMBRIDGE UNIV PRESS2022

Subharmonic parametric instability in nearly brimful circular cylinders: a weakly nonlinear analysis

François Gallaire, Alessandro Bongarzone, Francesco Viola

In labscale Faraday experiments, meniscus waves respond harmonically to small-amplitude forcing without threshold, hence potentially cloaking the instability onset of parametric waves. Their suppression can be achieved by imposing a contact line pinned at ...

CAMBRIDGE UNIV PRESS2022

Decoupling the role of inertia, friction and cohesion in dense granular avalanche pressure build‐up on obstacles

Christophe Ancey, Johan Alexandre Philippe Gaume, Michael Lukas Kyburz

Understanding the physical processes involved in snow avalanche‐obstacle interaction is essential to be able to estimate the pressure exerted on structures. Although avalanche impact pressure has been measured in field experiments for decades, the underlyi ...

2020

Interaction and breakup of droplet pairs in a microchannel Y-junction

Tobias Schneider

We combine theory, numerical simulation, and experiments to investigate the breakup of two identical droplets entering a Y-junction with controlled spatial offset by which the second droplet trails the first. Based on fully resolved 3D simulations, we desc ...

AMER PHYSICAL SOC2020

Studying the wettability of Si and eutectic Si-Zr alloy on carbon and silicon carbide by sessile drop experiments

Ludger Weber, Alberto Ortona, Manoj Kondibhau Naikade

The contact angles of two different systems, molten silicon and a eutectic Si-8 at. pct Zr alloy and their evolution over timeon vitreous carbon and polycrystalline silicon carbide (SiC) substrates were investigated at 1500 degrees C under vacuum, as well ...

ELSEVIER SCI LTD2019

Assessment of capillary phenomena in liquid composite molding

Véronique Michaud, Baris Çaglar, Feyza Karasu Kiliç, Cem Tekin

The interplay between capillary and viscous forces plays a significant role for optimal part quality in fiber-reinforced composites manufactured by Liquid Composite Molding (LCM); these are however difficult to analyze during flow. Two approaches are propo ...

2019

Capillary length

Stability of a liquid layer draining around a horizontal cylinder: Interplay of capillary and gravity forces

The Three-Phase Contact Potential Difference Modulates the Water Surface Charge

The Three-Phase Contact Potential Difference Modulates the Water Surface Charge

Influence of Sphericity on Surface Termination of Icosahedral Colloidal Clusters

Dynamics of cavitation bubbles near granular boundaries

Subharmonic parametric instability in nearly brimful circular cylinders: a weakly nonlinear analysis

Decoupling the role of inertia, friction and cohesion in dense granular avalanche pressure build‐up on obstacles

Interaction and breakup of droplet pairs in a microchannel Y-junction

Studying the wettability of Si and eutectic Si-Zr alloy on carbon and silicon carbide by sessile drop experiments

Assessment of capillary phenomena in liquid composite molding

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Stability of a liquid layer draining around a horizontal cylinder: Interplay of capillary and gravity forces

Influence of Sphericity on Surface Termination of Icosahedral Colloidal Clusters

Dynamics of cavitation bubbles near granular boundaries

Decoupling the role of inertia, friction and cohesion in dense granular avalanche pressure build‐up on obstacles

The Three-Phase Contact Potential Difference Modulates the Water Surface Charge

The Three-Phase Contact Potential Difference Modulates the Water Surface Charge

Subharmonic parametric instability in nearly brimful circular cylinders: a weakly nonlinear analysis

Interaction and breakup of droplet pairs in a microchannel Y-junction

Studying the wettability of Si and eutectic Si-Zr alloy on carbon and silicon carbide by sessile drop experiments

Assessment of capillary phenomena in liquid composite molding