English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Significance The heat transport law in turbulent convection remains central to current research in the field. Our present knowledge of the heat transport law forR a &gt; 1 0 12 is inconclusive, where the Rayleigh numberR a is a measure of the strength of convection. Massively parallel simulations of the three-dimensional convection have progressed toR a = 1 0 15 in slender cells. We resolve velocity gradients inside thin boundary layers and show that the turbulent heat transport continues to follow the classical1 / 3 scaling law with no transition to the so-called “ultimate” state that is variously argued to have1 / 2 scaling. Our work suggests that the boundary layers remain marginally stable and continue to act as the bottleneck for global heat transport.

Classical 1/3 scaling of convection holds up to Ra = 10 15

Classical 1/3 scaling of convection holds up to Ra = 10 ¹⁵