APS » PROLA » Phys. Rev. Lett. » Volume 67 » Issue 25

Phys. Rev. Lett. 67, 3519 - 3522 (1991)

Development of hard-turbulent convection in two dimensions: Numerical evidence
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J. Werne, E. E. DeLuca, R. Rosner, and F. Cattaneo
Enrico Fermi Institute, The University of Chicago, Chicago, Illinois 60637
Institute for Astronomy, University of Hawaii, Honolulu, Hawaii 96822

Received 19 February 1991

New numerical evidence for a transition to hard turbulence in 2D Boussinesq convection is presented. These 2D simulations agree with some, but not all, experimental results for the scaling properties of 3D hard turbulence. The transition to 2D hard turbulence, as measured by a change in the Nusselt-Rayleigh scaling law, coincides with a gradual change in the velocity probability distribution from Gaussian to exponential form and with the development of a ‘‘well-mixed’’ central region.


©1991 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v67/p3519
DOI: 10.1103/PhysRevLett.67.3519
PACS: 47.25.Ae, 47.25.Qv

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