Model of a multiscaled MHD dynamo |
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| Authors: | D D Sokoloff P G Frick |
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| Institution: | (1) Moscow State University, Moscow, 119992, Russia;(2) Institute of Continuum Mechanics, Ural Division, Russian Academy of Sciences, ul. Akademika Koroleva 1, Perm, 614061, Russia |
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| Abstract: | A simple model for a multiscaled MHD dynamo is suggested. The uppermost tier of the model controls the evolution of the large-scale magnetic field, while the lower tiers are responsible for the evolution of the small-scale velocity and magnetic fields. This approach makes it possible to reproduce, e.g., the evolution of the Galactic magnetic field for realistic magnetic Reynolds numbers, which cannot be done using direct, detailed simulations. |
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