ESPCI web site
PMMH’s weekly seminar is held every Friday at 11 am (map)
Stéphane Perrard
Etienne Reyssat
Virgile Thiévenaz
PMMH
BARRE CASSAN
BAT A 1ER ETAGE CASE 18
7 QUAI SAINT BERNARD
75005 PARIS
France
Tel : (33) 1 40 79 45 22
Jacopo Seiwert (IPR, Rennes)
Generation and deformation of soap films
Liquid foams are widely used in industry for their high effective viscosity, whose local origin is still unclear. We present new theoretical and experimental results on the physics of soap films, in configurations mimicking the elementary deformation occurring during foam shearing. Theoretically, we study the influence of surface rheology on the creation of such films. Experimentally, we address the deformation mechanisms of a suspended film, and we evidence a surprising two-step evolution : the film first extends homogeneously, then its extension stops and a new thicker film is extracted from the meniscus. We rationalize this complex behavior using a model based on Frankel's theory, and on interface rigidification induced by confinement.
The audience is composed of people with rather heterogeneous backgrounds including specialists in solids, fluids, granular flows, statistical physics... so the idea is to keep your talk understandable by people not necessarily working in your field... The seminar time slot runs from 11am to noon so the best is to make the talk last around 45 minutes to leave some time for discussion.
- Séminaires ESPCI-ENS de biophysique
- Séminaires du Département de Physique de l’ENS
- Séminaires du Laboratoire d’Hydrodynamique de l’X
- Séminaire de Mécanique d’Orsay (page web FAST)
- Séminaire de Mécanique d’Orsay (page web LIMSI)
- Séminaire de Mécanique des Fluides de l’Institut Jean le Rond d’Alembert
- Séminaires du laboratoire MSC, Paris VII
- Séminaires Gulliver
Link to cofee seminar (internal, every Thursday)
