An MHD Study of the Behavior of an Electrolyte Solution Using 3D Numerical SimulationL. P. Aoki, H. E. Schulz, M. G. Maunsell
University of São Paulo, São Carlos, SP, Brazil
This article considers a closed water circuit with square cross section filled with an electrolyte fluid. The conductor fluid was moved using an electromagnetic pump, in which a permanent magnet generates a magnetic field and electrodes generate the electric field in the flow. Thus, the movement is a consequence of the magnetohydrodynamic (or MHD) effect. The model adopted here was derived from the Navier-Stokes equations for Newtonian incompressible fluid using the k-ε turbulence model and coupled with the Maxwell equations. The equations were solved using COMSOL Multiphysics®. The 3D numerical simulations allowed obtaining realistic predictions of the Lorentz forces, the current densities, and the movement of the flows as a consequence of the MHD effects, imposing direct currents.