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SUMMARY:Onset of thermal convection at low Ekman and Prandtl numbers by 
 an hybrid approach - Philippe Cardin (Grenoble)
DTSTART:20160201T160000Z
DTEND:20160201T170000Z
UID:TALK63249@talks.cam.ac.uk
CONTACT:Jean Teyssandier
DESCRIPTION:We computed thermal convection in a rapidly rotating sphere ge
 nerated by internal heating. For low Ekman and low Prandtl\, two dynamical
  branches are present\; a weakly non linear branch connected to the onset 
 (quite well documented) and an new upper branch with larger value of conve
 ctive velocities and different scaling laws. For extreme regimes\, the upp
 er branch becomes subcritical.
LOCATION:MR14\,  Centre for Mathematical Sciences\, Wilberforce Road\, Cam
 bridge
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