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Details for article 62 of 204 found articles
| Title: |
Geostrophic motions of a Boussinesq fluid in a thick rotating spherical shell |
| Author: |
Lesueur, V. Abouelainine, A. Mangeney, A. Drossart, P. |
| Appeared in: |
Geophysical & astrophysical fluid dynamics |
| Paging: | Volume 91 (1999) nr. 1-2 pages 1-43 |
| Year: |
1999-12-01 |
| Contents: |
We investigate numerically the three-dimensional flow in a thick spherical shell, when a Boussinesq fluid is subject to an internal isotropic heat source and to an external differential heating. The external heat source is a model of the solar heating and, therefore, varies with the inclination of the rotation axis of the system. The conductive temperature field consistent with the thermal forcing is first analyzed and then the flow compatible with this temperature field is computed. It is shown that, for moderate thermal forcings, the flow is axisymmetric and geostrophic. Two Hadley cells develop on each side of the equator, from the equator to the poles. The flow extends throughout the whole layer, but the heat and angular momentum transfers are essentially diffusive, due to the weakness of the flow. Energy and angular momentum are conserved at a good approximation. The parameters introduced in the simulations were chosen to be relevant to the known characteristics of the outer planets. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 62 of 204 found articles
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