Ultimate Rayleigh-Bénard turbulence

D Lohse, O Shishkina - Reviews of modern physics, 2024 - APS
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 …

On the boundary-layer asymmetry in two-dimensional annular Rayleigh–Bénard convection subject to radial gravity

A Bhadra, O Shishkina, X Zhu - Journal of Fluid Mechanics, 2024 - cambridge.org
Radial unstable stratification is a potential source of turbulence in the cold regions of
accretion disks. To investigate this thermal effect, here we focus on two-dimensional …

[HTML][HTML] On temperature reconstruction from velocity fields in turbulent Rayleigh–Bénard convection

S Weiss, MS Emran, J Bosbach, O Shishkina - International Journal of Heat …, 2025 - Elsevier
We propose a method to reconstruct the temperature field from spatially and temporally well
resolved velocity fields in thermal convection. Here, in the first place, we consider a Rayleigh …

[HTML][HTML] Non-Oberbeck–Boussinesq effects on the convective stability in a transient natural convection boundary layer for water

J Ke, SW Armfield, N Williamson - International Journal of Heat and Mass …, 2025 - Elsevier
Abstract The non-Oberbeck–Boussinesq effects on the linear stability of a vertical natural
convection boundary layer are investigated using the linearised disturbance equation for …

Heat transport in liquid metal convection from onset to turbulence: the effect of small aspect ratio

L Ren, X Tao, L Zhang, KQ **a, YC **e - Journal of Fluid Mechanics, 2024 - cambridge.org
We present a systematic study on the effects of small aspect ratios cell when the flow
becomes time-dependent. Measurements of the large-scale circulation suggest the …

Large-scale reorientation in cubic Rayleigh–Bénard convection measured with particle tracking velocimetry

R Barta, C Wagner - Journal of Turbulence, 2025 - Taylor & Francis
Three-dimensional velocity fields of a large-scale reorientation in turbulent Rayleigh–
Bénard convection at Ra= 2.5⋅ 10 9 in a 300 mm cubic water cell are measured using …

Convection, but How Fast Does Fluid Mix in Hydrothermal Systems?

HN Ulloa, D Noto, JA Letelier - Authorea Preprints, 2025 - essopenarchive.org
The destabilizing thermal gradient across the Earth's lithosphere drives convection in
superconfined hydrothermal environments at mid-ocean ridges and geothermal reservoirs in …