Numerical simulation of electromagnetic mixing of molten metal

This paper describes the method used to calculate the flow field and quantify mixing capabilities of an electromagnetically stirred molten metal bath. PHOENICS 2.1.3, a commercial computational fluid dynamics code, was used to solve the turbulent Navier Stokes´ equations. The electromagnetic field resulting from a current of 1000 A_RMS , at 50Hz in the coil, was predicted using Vector Fields PC Opera. The mathematical model constructed using these codes, employed a realistic 2D axisymmetric geometry. The electromagnetic and hydrodynamic equation sets are coupled through Ohms´ law for a conducting fluid. This work shows that the effect of fluid motion on the electromagnetic forces is negligible and increases the magnitude of the forces by 1% at most