Differential Rotation Driven by Convection in a Rapidly Rotating Annulus

F. H. Busse, L. L. Hood

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

The generation of a mean zonal flow by centrifugally driven thermal convection in a rotating annulus heated from the outside and cooled from within is investigated theoretically as well as experimentally. It is shown that the direction of the mean flow depends on the curvature of the conical surfaces bounding the fluid in the axial direction. Convex conical boundaries give rise to a prograde mean flow in the outer part and a retrograde mean flow in the inner part of the fluid annulus. The directions are reversed for concave conical boundaries. Although the parameter regime for which the theoretical results have been derived could not be realized in the experiment, semi-quantitative agreement between theoretical predictions and observations has been found.

Original languageEnglish (US)
Pages (from-to)59-74
Number of pages16
JournalGeophysical & Astrophysical Fluid Dynamics
Volume21
Issue number1-2
DOIs
StatePublished - Aug 1 1982
Externally publishedYes

ASJC Scopus subject areas

  • Computational Mechanics
  • Astronomy and Astrophysics
  • Geophysics
  • Mechanics of Materials
  • Geochemistry and Petrology

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