Generation of a magnetic field by a double vortex in a rotating cylinder.
basic_science · Level V
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- Record sourced from PubMed, PMID 30999500.
- Also identified by DOI 10.1103/PhysRevE.99.033109.
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Abstract
In this paper we use simulations of the magnetohydrodynamic equations coupled with heat to show the generation of magnetic field by the dynamical interaction of a pair of vortices in a fluid electrically conducting within a cylindrical domain nonhomogeneously heated from below, setting in a rotation frame. For large enough rotation rates we show that the formation of a pair of vortices inside the primary whirl gives rise to a magnetic field. The magnetic field has a strong horizontal component, and the magnetic lines go from one vortex to the other.