BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:T1s in soap film architecture: effect of surfactants and assembly 
 geometry - Biance\, A-L (ILM\, CNRS and University Lyon 1)
DTSTART:20140226T143500Z
DTEND:20140226T145500Z
UID:TALK51101@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:Co-authors: Cantat Isabelle (Institut de Physique de Rennes)\,
  Seiwert Jacopo (Institut de Physique de Rennes)\, Petit Pauline (ILM\, CN
 RS and University Lyon 1) \n\nIn this study\, we use particular soap film 
 architecture (cubic or parallelepipedic) to study topological rearrangemen
 t dynamics and especially the freshly film structure. In the cubic frame a
 rchitecture\, by measuring the thickness profile of the film and the veloc
 ity profile within the liquid\, we identify two mechanisms of film formati
 on\, which are a pure elongation of a liquid meniscus or a film at rest pu
 lled out the Plateau borders. Experiments in a parallelepipedic architectu
 re\, much more realistic for 3D foams\, have underlined a different mechan
 ism consisting in a Plateau border unzipping mechanism. For certain types 
 of surfactants\, this process is associated to oscillations (due to inerti
 a and capillary recoil) and rupture of adjacent films. Moreover\, front pr
 opagations to redistribute the liquid after the T1 in the soap film assemb
 ly have also been observed. \n
LOCATION:Seminar Room 1\, Newton Institute
END:VEVENT
END:VCALENDAR