Abstract: The results of numerical simulation of convective heat transfer of an electrically conducting fluid between concentric spheres with heat input from below are presented. Тthe influence of the gGashof number and joule dissipation on the structure of the fluid flow, temperature field, magnetic induction and the distribution of local Nusselt numbers is investigated.
Index terms: mathematical modeling, convective heat transfer, magnetic hydrodynamics, joule dissipation, spherical layer.

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