The Heat Transport in Turbulent Rayleigh-bénard Convection: Local Scaling Exponents
نویسندگان
چکیده
Using infrared thermography, the dimensionless local wall heat fluxNu(x, y) has been measured with high spatial resolution. The measurements at the heating plate of a cubic Rayleigh-Bénard cell show that the scaling exponent α in the Nu ∝ Ra scaling law depends on the position with respect to the surface. The results have been obtained in a small aspect ratio cell with Γx = 1, Γy = 0.26 and clearly show an effect of the sidewalls on the local and therefore also on the global scaling of the heat transport.
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