Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Champougny, Lorène"'
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 succession of monodisperse floating lenses. We show that this interfaci
Externí odkaz:
http://arxiv.org/abs/2401.00459
Autor:
Ávila-García, Diego, Lacambra-Asensio, Lucía, Rodríguez-Rodríguez, Javier, Zenit, Roberto, Champougny, Lorène
In splat painting, a collection of liquid droplets is projected onto the substrate by imposing a controlled acceleration to a paint-loaded brush. To unravel the physical phenomena at play in this artistic technique, we perform a series of experiments
Externí odkaz:
http://arxiv.org/abs/2311.11377
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 & Levich and Derjaguin in the 1940's. In this work, we present an extension o
Externí odkaz:
http://arxiv.org/abs/2011.07356
Wettability patterning in microfluidic devices using thermally-enhanced hydrophobic recovery of PDMS
Autor:
Pascual, Marc, Kerdraon, Margaux, Rezard, Quentin, Jullien, Marie-Caroline, Champougny, Lorène
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, often based on masking, have been developed to produce spatially-resolved
Externí odkaz:
http://arxiv.org/abs/1910.13354
Autor:
Champougny, Lorène, Pierre, Juliette, Devulder, Antoine, Leroy, Valentin, Jullien, Marie-Caroline
Publikováno v:
European Physical Journal E (2019) 42: 6
While the acoustic properties of solid foams have been abundantly characterized, sound propagation in liquid foams remains poorly understood. Recent studies have investigated the transmission of ultrasound through three-dimensional polydisperse liqui
Externí odkaz:
http://arxiv.org/abs/1901.06357
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 literature. In this work, we investigate experimentally the influence of e
Externí odkaz:
http://arxiv.org/abs/1803.00801
Autor:
Champougny, Lorène
Source d'émerveillement et d'inspiration poétique, la beauté éphémère des films de savon recèle des questions scientifiques fondamentales, qui ont de nombreuses répercussions pour des applications allant de la formulation des shampoings à la
Externí odkaz:
http://www.theses.fr/2015SACLS221/document
Publikováno v:
Soft Matter, 12, 5276-5284 (2016)
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 molecules in water. Drainage measurements at the apex of bubbles indica
Externí odkaz:
http://arxiv.org/abs/1701.03610
Publikováno v:
J. Fluid Mech. (2017), vol. 811, pp. 499-524
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 velocity. We here focus on the case of a pure liquid, corresponding to a
Externí odkaz:
http://arxiv.org/abs/1701.02585
Publikováno v:
Journal of Applied Physics, American Institute of Physics, 2017, 121, pp.094305
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 force microscope and an extended force modulation protocol, we investigate
Externí odkaz:
http://arxiv.org/abs/1611.06837