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SUMMARY:Transitions to vortex condensate growth in buoyancy-driven rotatin
 g turbulence - Rudie Kunnen (TU Eindhoven)
DTSTART:20240325T113000Z
DTEND:20240325T122000Z
UID:TALK208609@talks.cam.ac.uk
DESCRIPTION:Buoyant forcing and rotation are two principal components of m
 any geophysical and astrophysical flows. Perhaps the simplest model repres
 entation incorporating these components is rotating Rayleigh-B&eacute\;nar
 d convection: a fluid layer is confined between two corotating horizontal 
 plates\, with the bottom plate at a higher temperature than the top plate.
  This flow problem has shown rich dynamics with a wide variety of flow str
 uctures\, among which a range of parameters where large-scale vortex conde
 nsates are formed. I will use simulation results to consider the nature of
  the transitions between states with and without vortex growth\, which are
  sharply delineated in the governing parameter space. The boundary conditi
 ons are found to have remarkably strong consequences for the overall behav
 iour of this system. Finally\, I will address some difficulties encountere
 d in attempts to experimentally realise vortex condensate growth in this s
 ystem (so far unsuccessful).
LOCATION:Seminar Room 1\, Newton Institute
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