European Turbulence Conference 14

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Sidewall effects in confined turbulent rotating Rayleigh-Bénard convection

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We experimentally investigate turbulent rotating Rayleigh–Bénard convection in an uprightcylinder. Particle image velocimetry measurements are carried out in a planar cross-section of a water-filled cylinder with diameter-to-height aspect ratio Γ = 1/2. In comparison with previous measurements in Γ = 1 convection cells there are remarkable differences in flow structuring which may be attributed to the closer proximity of the sidewall. We quantify the dynamics of the large-scale circulation at low rotation rates and the spatial distribution of the vortical plumes at higher rotation rates.


Rudie Kunnen    
Eindhoven University of Technology

Yoann Corre    
Université Paris-Sud

Herman Clercx    
Eindhoven University of Technology


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