Heat transport by turbulent Rayleigh–Bénard convection for Pr ≃ 0.8 and 3 × 1012 ≲ Ra ≲ 1015: aspect ratio Γ = 0.50

@inproceedings{Ahlers2012HeatTB,
  title={Heat transport by turbulent Rayleigh–Bénard convection for Pr ≃ 0.8 and 3 × 1012 ≲ Ra ≲ 1015: aspect ratio Γ = 0.50},
  author={Guenter Ahlers and Xiaozhou He and Denis Funfschilling and Eberhard Bodenschatz},
  year={2012}
}
We report on the experimental results for heat-transport measurements, in the form of the Nusselt number Nu, by turbulent Rayleigh–Bénard convection (RBC) in a cylindrical sample of aspect ratio 0 ≡ D/L = 0.50 (D = 1.12 m is the diameter and L = 2.24 m the height). The measurements were made using sulfur hexafluoride at pressures up to 19 bar as the fluid. They are for the Rayleigh-number range 3 × 1012 . Ra . 1015 and for Prandtl numbers Pr between 0.79 and 0.86. For Ra < Ra 1 ' 1.4 × 10 13 we… CONTINUE READING
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