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

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.

submitted to Phys.Fluids

References in corpus (1)

• Heat Transfer in Turbulent Rayleigh-Benard Convection below the Ultimate Regime

Cited by in corpus (7)

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• Aspect ratio dependence of heat transport by turbulent Rayleigh-Bénard convection in rectangular cells
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• Influence of Reynolds number and forcing type in a turbulent von Kármán flow