Thermal convection in rotating systems and the band structure of the major planets

Details Thermal convection in rotating systems and the band structure of the major planets Thermal convection in rotating systems and the band structure of the major planets

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992eocm.rept..317b&link_type=abstract

In ESA, Environment Observation and Climate Modelling Through International Space Projects. Columbus Eight (COSY-8): Utilisation

Other

1

Free Convection, Planetary Atmospheres, Rotating Cylinders, Spherical Shells, Annuli, Buoyancy, Mathematical Models, Nonlinear Systems, Planetary Waves

Scientific paper

The rich variety of nonlinear dynamical phenomena in a most simple configuration of convection driven by centrifugal buoyancy on the one hand, and its far reaching potential in explaining many of the remarkably regular features observed in the major planets on the other hand, are demonstrated. The problem of thermal convection driven by centrifugal buoyancy in rotating cylinders and spherical shells is reviewed and a number of unusual dynamic features are pointed out. In the case of the cylindrical annulus the transition to asymmetric convection gives rise to the generation of strong mean zonal flows which appear to be related to the observed zonal jets in the atmospheres of Jupiter and Saturn. Because many phenomena such as period doubling sequences and transitions to chaos can be described on the basis of a spatially two dimensional analysis, the convection problem also serves as a particularly attractive system for the study of nonlinear dynamics. Through numerical simulations and experimental studies the close correspondence between convection in rotating spheres and cylinders can be established.

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