Nonlinearities in dynamo |
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| Authors: | M Yu Reshetnyak |
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| Institution: | 1.Schmidt Institute of Physics of the Earth,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | By the example of the dynamo model in the rotating plane layer heated from below, the effects are examined that lead to the
stabilization of an exponentially growing magnetic field in the magnetostrophic convection in passing from the kinematic dynamo
mode to the nonlinear mode. The estimates of the energy redistribution in the spectrum are given, and the mechanisms of suppression
of helicity are presented. Equalization of the field of velocity and the magnetic field is analyzed. The modes examined are
close to those utilized in the up-to-date models of the planetary dynamo in the cores of planets. |
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