2 Dokumente gefunden
Convective mesoscale turbulence at very low Prandtl numbers
Horizontally extended turbulent convection, termed mesoscale convection in natural systems, remains a challenge to investigate in both experiments and simulations. This is particularly so for very low molecular Prandtl numbers, such as occur in stellar convection and in the Earth's outer core. The present…
Cambridge [u.a.]: Cambridge Univ. Press, 2022-09-08
Combined particle image velocimetry and thermometry of turbulent superstructures in thermal convection
Turbulent superstructures in horizontally extended three-dimensional Rayleigh-Bénard convection flows are investigated in controlled laboratory experiments in water at Prandtl number Pr = 7. A Rayleigh-Bénard cell with square cross-section, aspect ratio Γ = l/h = 25, side length l and height h is used.…
Cambridge [u.a.]: Cambridge Univ. Press, 2022-07-21