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arXiv · 2401.16200

Rapidly rotating radiatively driven convection: experimental and numerical validation of the `geostrophic turbulence' scaling predictions

Gabriel Hadjerci·Vincent Bouillaut·Benjamin Miquel·Basile Gallet
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Abstract

We experimentally and numerically characterize rapidly rotating radiatively driven thermal convection, beyond the sole heat transport measurements reported in Bouillaut et al. (2021). Based on a suite of direct numerical simulations (DNS) and additional processing of the experimental data collected by Bouillaut et al. (2021), we report the simultaneous validation of the scaling predictions of the `geostrophic turbulence' regime -- the diffusivity-free or `ultimate' regime of rapidly rotating convection -- for the heat transport, the temperature fluctuations, the flow speed and the flow structure. Radiatively driven convection thus appears as a versatile setup for the laboratory observation of the diffusivity-free regimes of various convective flows of geophysical and/or astrophysical interest.

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Gabriel Hadjerci, Vincent Bouillaut, Benjamin Miquel, Basile Gallet. 2024-01-29. Rapidly rotating radiatively driven convection: experimental and numerical validation of the `geostrophic turbulence' scaling predictions. https://arxiv.org/abs/2401.16200

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