Magneto-Hydrodynamic Numerical Study of DC Electromagnetic Pump for Liquid Metal
نویسندگان
چکیده
In this work, the results are presented of a 3D numerical magneto-hydrodynamic (MHD) simulation of direct current (DC) electromagnetic pump for liquid aluminum at large Reynolds number under externally imposed non-uniform magnetic field. The formulation of the magneto hydrodynamic model has been derived from the Reynolds-Averaged NavierStokes equations with standard k-ε turbulence model coupled with the Maxwell equations for Newtonian incompressible fluid. These equations are solved simultaneously in the finite element environment COMSOL 3.4a. A direct electrical current is applied to a pair of electrodes, placed orthogonally to the magnetic field, exerting the Lorentz force driving the molten metal through a flat rectangular channel. Several pumping operation conditions are applied to study the M deformations of the initial flow velocity profile in the magnetic field region.
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