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SUMMARY:Boundary layers in turbulent convection at vertical walls - Dr. Ch
 ris Howland (University of Twente)
DTSTART:20220304T123000Z
DTEND:20220304T133000Z
UID:TALK169136@talks.cam.ac.uk
CONTACT:99736
DESCRIPTION:Many environmental flows arise due to natural convection at a 
 vertical surface\, from flows in buildings to dissolving ice faces at mari
 ne-terminating glaciers. We use three-dimensional direct numerical simulat
 ions of a vertical channel with differentially heated walls to investigate
  such convective\, turbulent boundary layers. Through the implementation o
 f a multiple-resolution technique\, we can perform simulations at a wide r
 ange of Prandtl numbers. We determine how the heat flux\, wall shear\, and
  Reynolds number depend on the Prandtl number\, and identify the key role 
 of thin\, conductive sublayers in controlling these quantities. Finally\, 
 we also consider the passive transport of temperature in salt-driven verti
 cal convection\, the role of differential diffusion\, and the implications
  of our results for the parameterisation of heat and salt fluxes at ice-oc
 ean interfaces.
LOCATION:CUED\, LT6
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