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Ultimate Regime of Convection: robustness to poor thermal properties of the plates

Philippe-Emmanuel P. -E. Roche·Frédéric Gauthier·Benoît Chabaud·Bernard Hébral
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Abstract

A transition to Kraichnan ultimate regime of convection has been reported in very high Rayleigh numbers experiments, but not in all of them. These apparently contradictory results can be explained by a recent phenomenological model which accounts for the non-ideality of the plate thermal properties [Chillà et al, Physics of Fluids 16:2452 (2004)]. In this paper, we present a direct test of this model, using a low conductivity plate. We found an unaltered transition, not compatible with the model's predictions.

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Philippe-Emmanuel P. -E. Roche, Frédéric Gauthier, Benoît Chabaud, Bernard Hébral. 2005-01-31. Ultimate Regime of Convection: robustness to poor thermal properties of the plates. https://doi.org/10.1063/1.2136807

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