Robust wall modes and their interplay with bulk turbulence in confined rotating Rayleigh-Bénard convection
Xander M. de Wit, Wouter J. M. Boot, Matteo Madonia, Andrés J. Aguirre Guzmán, Rudie Kunnen
Abstract
Rotating Rayleigh-Benard convection is the fundamental flow system to understand many geophysical and astrophysical flows. Typically studied in a confined cylindrical geometry, it was found in recent years that in such confined set-ups, a strong flow structure can develop near the side wall, obscuring observations of the bulk dynamics that we are interested in. Here we study different properties of this wall bounded flow, focussing on the interaction between the bulk and side wall region, to advance our understanding of how to disentangle the two.
Topics & Concepts
TurbulencePhysicsMechanicsVortexConvectionReynolds numberReynolds stressClassical mechanicsZonal flow (plasma)WavenumberOpticsQuantum mechanicsPlasmaTokamakFluid Dynamics and Turbulent FlowsGeomagnetism and Paleomagnetism StudiesOceanographic and Atmospheric Processes