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SUMMARY:Falling clouds and jets of particles - Élisabeth Guazzelli (Marse
 ille)
DTSTART:20110509T120000Z
DTEND:20110509T130000Z
UID:TALK30978@talks.cam.ac.uk
CONTACT:Dr Ed Brambley
DESCRIPTION:Clouds and jets of particles settling under the action of grav
 ity in an otherwise pure liquid are investigated both experimentally and n
 umerically. These two particulate systems can be unstable even in the comp
 lete absence of inertia.  A cloud of particles slowly evolves into a torus
  which breaks up into secondary droplets which deform into tori themselves
  in a repeating cascade while a jet of particles develops varicose modulat
 ion of its diameter at low volume fractions. The discrete nature of the pa
 rticles is fundamental in the understanding of these instabilities.\n\nThi
 s work has been done in collaboration with Jason Butler\, Maria Ekiel-Jeż
 ewska\, Bloen Metzger\, Maxime Nicolas\, Joontaek Park\, Florent Pignatel\
 , David Saintillan. 
LOCATION:MR5\, CMS
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