Abstract
The electromagnetic force and consequent fluid flow patterns that can occur in a conventional electromagnetic mold for continuous casting of aluminum are described. The role of system geometry, specifically the placement of the confinement coil and shield, is examined in detail. The distribution of electromagnetic pressure as well as the curl of the lorentz force are presented. The effect of frequency is also considered. The coupled circuit method is used to predict the current density distribution for a specific mold geometry. The induced currents are then used to predict the pressures and forces. Nonlinear stream function/vorticity equations are solved under the assumption of constant turbulent viscosity to obtain the flow patterns. The role of the screen in shaping the force patterns is critically examined.
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