Flow configuration and its relation to the heat flux in a rectangular convection box
Stephan Weiss  1, 2@  , Hiufai Yik  3  , Eberhard Bodenschatz  3  
1 : Max Planck Institute for Dynamics and Self-Organisation
2 : German Aerospace Center
3 : Max Planck Institute f. Dynamics and Self-Organisation

We report on measurement results in highly turbulent Rayleigh-Benard convection. Convection takes place in a 0.7 m high, 3.5 m long and 0.35 m wide rectangular box. The working fluid is pressurized sulfur-hexafluoride (SF6) at pressures of up to 18bar. In this setup, we reach Rayleigh numbers in the range 10^10 < Ra < 10^13 and Prandtl numbers of 0.7


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