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The sensitivity of rapidly rotating Rayleigh--Bénard convection to Ekman pumping
Meredith Plumley, Keith Julien, Philippe Marti +1
The dependence of the heat transfer, as measured by the nondimensional Nusselt number , on Ekman pumping for rapidly rotating Rayleigh-Bénard convection in an infinite plane la…
The effects of Ekman pumping on quasi-geostrophic Rayleigh-Benard convection
Meredith Plumley, Keith Julien, Philippe Marti +1
Numerical simulations of 3D, rapidly rotating Rayleigh-Benard convection are performed using an asymptotic quasi-geostrophic model that incorporates the effects of no-slip boundari…
A nonlinear model for rotationally constrained convection with Ekman pumping
Keith Julien, Jonathan M. Aurnou, Michael A. Calkins +4
It is a well established result of linear theory that the influence of differing mechanical boundary conditions, i.e., stress-free or no-slip, on the primary instability in rotatin…
Kinetic Energy Transport in Rayleigh--Bénard Convection
Klaus Petschel, Stephan Stellmach, Michael Wilczek +2
The kinetic energy balance in Rayleigh--Bénard convection is investigated for the Prandtl number range and for fixed Rayleigh number . The kin…
Approaching the Asymptotic Regime of Rapidly Rotating Convection: Boundary Layers vs Interior Dynamics
S. Stellmach, M. Lischper, K. Julien +5
Rapidly rotating Rayleigh-Bénard convection is studied by combining results from direct numerical simulations (DNS), laboratory experiments and asymptotic modeling. The asymptotic…
Dissipation Layers in Rayleigh-Bénard Convection: A Unifying View
K. Petschel, S. Stellmach, M. Wilczek +2
Boundary layers play an important role in controlling convective heat transfer. Their nature varies considerably between different application areas characterized by different boun…
Dynamics of fingering convection I: Small-scale fluxes and large-scale instabilities
A. Traxler, S. Stellmach, P. Garaud +2
Double-diffusive instabilities are often invoked to explain enhanced transport in stably-stratified fluids. The most-studied natural manifestation of this process, fingering convec…