203 citations · 646 across the 11 of their papers we have counts for
10 papers · 1 filter
No sustained mean velocity in the boundary region of plane thermal convection
Roshan J. Samuel, Mathis Bode, Janet D. Scheel +2
We study the dynamics of thermal and momentum boundary regions in three-dimensional direct numerical simulations of Rayleigh-Bénard convection for the Rayleigh number range $10^5 \…
Inverse cascades of kinetic energy and thermal variance in three-dimensional horizontally extended turbulent convection
Philipp P. Vieweg, Janet D. Scheel, Rodion Stepanov +1
Inverse cascades of kinetic energy and thermal variance in the subset of vertically homogeneous modes in spectral space are found to cause a slow aggregation to a pair of convectiv…
Supergranule aggregation for constant heat flux-driven turbulent convection
Philipp P. Vieweg, Janet D. Scheel, Jörg Schumacher
Turbulent convection processes in nature are often found to be organized in a hierarchy of plume structures and flow patterns. The gradual aggregation of convection cells or granul…
Turbulent superstructures in Rayleigh-Bénard convection
Ambrish Pandey, Janet D. Scheel, Jörg Schumacher
Turbulent Rayleigh-Bénard convection displays a large-scale order in the form of rolls and cells on lengths larger than the layer height once the fluctuations of temperature and ve…
Predicting transition ranges to turbulent viscous boundary layers in low Prandtl number convection flows
Janet D. Scheel, Jörg Schumacher
We discuss two aspects of turbulent Rayleigh-Bénard convection (RBC) on the basis of high-resolution direct numerical simulations in a unique setting; a closed cylindrical cell of…
Transitional boundary layers in low-Prandtl-number convection
Jörg Schumacher, Vinodh Bandaru, Ambrish Pandey +1
The boundary layer structure of the velocity and temperature fields in turbulent Rayleigh-Benard flows in closed cylindrical cells of unit aspect ratio is revisited from a transiti…