Laboratory simulation of Jupiter's great red spot by rotating shallow water

Details Laboratory simulation of Jupiter's great red spot by rotating shallow water Laboratory simulation of Jupiter's great red spot by rotating shallow water

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001acasn..42..397w&link_type=abstract

Acta Astronomica Sinica, vol.42, no.4, p. 397-407

Astronomy and Astrophysics

Astronomy

Jupiter'S Great Red Spot, Rotating Shallow Water, Coherent Structure, Shear, Coriolis Force, Jupiter'S Great Red Spot, Rotating Shallow Water, Coherent Structure, Shear, Coriolis Force

Scientific paper

A series of repeatable simulation tests was carried out on the experimental system for forming a layer of shallow water with a free surface on a rotating paraboloid. The photographs taken in a reference frame rotating with the system and the results of the power spectrum analyses show the generation , drift and evolution of persistent vortices on the large scale. Under the certain condition , an anticyclonic solitary vortex is produced, that is the only one along the whole perimeter of the system, stationary-drifting during an infinitely-long time, counter-directed to the general rotation of the system. This structure is interpreted as the Rossby solitary vortex and as a laboratory model of Jupiter's Great Red Spot. The experimental results demonstrate that hydrodynamic instabilities come from shear and Coriolis force effects, and the long-lived coherent vortex structure on the large scale emerges because of the self-organization of dissipation system far from the equilibrium state. Being inspired by many experiments , under the certain condition, a semi-empirical model from the fundamental equation of hydrodynamics was put forward. The solution to Rossby solitary vortex was interpreted approximately.

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