The article"Inertial Mass Transport and Capillary Hydraulic Jump in a Liquid Foam Microchannel", co-authored by LPMC and INLN, has been highlighted by an "editors’ suggestion" when published in Physical Review Letters. This article was also highlighted by the CNRS Institute of Physics.
We report a capillary-inertial flow in an unbounded liquid microchannel—a Plateau border in a liquid foam—and discuss its relevance for foam drainage. In contrast to the case of jets of cylindrical geometry, which are susceptible to the Rayleigh-Plateau instability, in this channel, any liquid perturbation is dispersed instead of amplified. The geometry of the Plateau border provides an effective negative surface tension that triggers the liquid redistribution. The dynamics is perturbation independent and leads to the formation of a hydraulic jump, at the micron-millimeter scale, traveling at constant velocity.
"Inertial Mass Transport and Capillary Hydraulic Jump in a Liquid Foam Microchannel", Phys. Rev. Lett. 112, 218303 – Published 27 May 2014 Alexandre Cohen, Nathalie Fraysse, Jean Rajchenbach, Médéric Argentina, Yann Bouret, and Christophe Raufaste
Fluides & Matériaux Complexes, (Enseignants-)Chercheurs, Fluides Complexes
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