61 citations · 246 across the 10 of their papers we have counts for
10 papers
Interfacial dripping faucet: generating monodisperse liquid lenses
Lorène Champougny, Vincent Bertin, Jacco H. Snoeijer +1
We present a surface analog to a dripping faucet, where a viscous liquid slides down an immiscible meniscus. Periodic pinch-off of the dripping filament is observed, generating a s…
The Fluid Mechanics of Splatter Painting
Diego Ávila-García, Carlos Salazar-Martín, Javier Rodríguez-Rodríguez +3
In splatter painting, a collection of liquid droplets is projected onto the substrate by imposing a controlled acceleration to a paint-loaded brush. This work aims at unraveling th…
Dip-coating flow in the presence of two immiscible liquids
Lorène Champougny, Benoit Scheid, Alexander A. Korobkin +1
Dip-coating is a common technique used to cover a solid surface with a thin liquid film, the thickness of which was successfully predicted by the theory developed by Landau & Levic…
Wettability patterning in microfluidic devices using thermally-enhanced hydrophobic recovery of PDMS
Marc Pascual, Margaux Kerdraon, Quentin Rezard +2
Spatial control of wettability is key to many applications of microfluidic devices, ranging from double emulsion generation to localized cell adhesion. A number of techniques, ofte…
Ultrasound transmission through monodisperse 2D microfoams
Lorène Champougny, Juliette Pierre, Antoine Devulder +2
While the acoustic properties of solid foams have been abundantly characterized, sound propagation in liquid foams remains poorly understood. Recent studies have investigated the t…
Influence of evaporation on soap film rupture
Lorène Champougny, Robin Henaff, Frédéric Restagno +2
Although soap films are prone to evaporate due to their large surface to volume ratio, the effect of evaporation on macroscopic film features has often been disregarded in the lite…
Life and death of not so "bare" bubbles
Lorène Champougny, Matthieu Roché, Wiebke Drenckhan +1
In this paper, we investigate how the drainage and rupture of surfactant-stabilised bubbles floating at the surface of a liquid pool depend on the concentration of surface-active m…
The break-up of free films pulled out of a pure liquid bath
Lorène Champougny, Emmanuelle Rio, Frédéric Restagno +1
In this paper, we derive a lubrication model to describe the non-stationary free liquid film that is created when a vertical frame is pulled out of a liquid reservoir at a given ve…
Dynamic stiffness of the contact between a carbon nanotube and a flat substrate in a peeling geometry
Tianjun Li, Lorène Champougny, Ludovic Bellon
We study the physics of adhesion and the contact mechanics at the nanoscale with a peeling experiment of a carbon nanotube on a flat substrate. Using an interferometric atomic forc…
Surfactant-induced rigidity of interfaces: a unified approach to free and dip-coated films
Lorène Champougny, Benoit Scheid, Frédéric Restagno +2
The behavior of thin liquid films is known to be strongly affected by the presence of surfactants at the interfaces. The detailed mechanism by which the latter enhance film stabili…