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Strong solutions to the equations of electrically conductive magnetic fluids
Authors:Youcef Amirat  Kamel Hamdache
Institution:1. Laboratoire de Mathématiques, CNRS UMR 6620, Université Blaise Pascal (Clermont-Ferrand 2), 63177 Aubière Cedex, France;2. Centre de Mathématiques Appliquées, CNRS, Ecole Polytechnique, 91128 Palaiseau Cedex, France;3. ECE-Paris, Ecole d''Ingénieurs, Immeuble Pollux, 37 quai de Grenelle, CS 71520, 75725 Paris Cedex 15, France
Abstract:We study the equations of flow of an electrically conductive magnetic fluid, when the fluid is subjected to the action of an external applied magnetic field. The system is formed by the incompressible Navier–Stokes equations, the magnetization relaxation equation of Bloch type and the magnetic induction equation. The system takes into account the Kelvin and Lorentz force densities. We prove the local-in-time existence of the unique strong solution to the system equipped with initial and boundary conditions. We also establish a blow-up criterion for the local strong solution.
Keywords:Magnetic fluid  Navier&ndash  Stokes equations  Magnetization relaxation equation  Induction equation  Strong solution  Blow-up criterion
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