The ultimate state of Rayleigh-Bénard convection?

Aya Tanabe
Some scientists have performed direct numerical simulations (DNS) of homogeneous Rayleigh-Bénard (RB) convection to seek an asymptotic high-Rayleigh number heat transport scaling law Nu ~ Raγ. By applying periodic boundary conditions, the goal has been to focus on the ‘ultimate’ regime where boundary layers are negligible and convective heat transport is limited only by the turbulence in the bulk. The value γ = 1/ 2 obtained in the DNS is consistent with the analytical conjecture...
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