Thermally driven turbulent flows are omnipresent in nature and technology. A good
understanding of the physical principles governing such flows is key for numerous problems …

Abstract Results on the Prandtl–Blasius-type kinetic and thermal boundary layer (BL)
thicknesses in turbulent Rayleigh–Bénard (RB) convection in a broad range of Prandtl …

Thermal turbulence is well known as a potent means to convey heat across space by a
moving fluid. The existence of the boundary layers near the plates, however, bottlenecks its …

We report the observation of superstructures, ie, very large-scale and long living coherent
structures in highly turbulent Rayleigh-Bénard convection up to Rayleigh Ra= 10 9. We …

Results from direct numerical simulation (DNS) for three-dimensional Rayleigh–Bénard
convection in a cylindrical cell of aspect ratio 1/2 and Prandtl number Pr= 0.7 are presented …

Two-dimensional and three-dimensional Rayleigh–Bénard convection is compared using
results from direct numerical simulations and previous experiments. The phase diagrams for …

Rough surfaces have been widely used as an efficient way to enhance the heat-transfer
efficiency in turbulent thermal convection. In this paper, however, we show that roughness …

Stably stratified wall-bounded turbulence is commonly encountered in many industrial and
environmental processes. The interaction between turbulence and stratification induces …

We analyze the reversals of the large-scale flow in Rayleigh-Bénard convection both
through particle image velocimetry flow visualization and direct numerical simulations of the …

We investigate the statistical properties of the kinetic is found to be plume dominated.
Moreover, the boundary-layer/plume contributions scale as those predicted by the GL …