Fh. Busse et F. Finocchi, THE ONSET OF THERMAL-CONVECTION IN A ROTATING CYLINDRICAL ANNULUS IN THE PRESENCE OF A MAGNETIC-FIELD, Physics of the earth and planetary interiors, 80(1-2), 1993, pp. 13-23
The problem of the onset of convection in a cylindrical annulus with c
onical end boundaries in the presence of an azimuthal and a radial com
ponent of a magnetic field is considered. It is shown that the effect
of the radial component on the convection rolls can be quite different
from that of the azimuthal component. Convection rolls with low azimu
thal wavenumbers are preferred in certain regions of the parameter spa
ce. Implications of the analysis for planetary applications are briefl
y discussed.