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Plume motion and large-scale circulation in a cylindrical Rayleigh-Bénard cell
Denis Funfschilling1, Guenter Ahlers
1Department of Physics and iQUEST, University of California, Santa Barbara, California 93106, USA.
Physical Review Letters
|June 1, 2004
Abstract:
We used the time correlation of shadowgraph images to determine the angle Theta of the horizontal component of the plume velocity above (below) the center of the bottom (top) plate of a cylindrical Rayleigh-Bénard cell of aspect ratio Gamma identical with D/L=1 (D is the diameter and L approximately 87 mm is the height) in the Rayleigh-number range 7 x 10(7)