Numerical Analysis of Coupled Fluid Flow, Heat Transfer and Macroscopic Solidification in the Thin Slab Funnel Shape Mold with a New Type EMBr

As an expansion of our former work, a series of numerical simulations of fluid flow, heat transfer, and macrosolidification under the control of both the conventional and the new type electromagnetic brake (EMBr) were carried out. In the present work, the physical models and parameters remain the same as those measures in our former research, and the solution processes of the flow field and electromagnetic field are similar. The specific heat method is used to treat the latent heat of solidi. cation, and the Darcy's Law-type porous media treatment is used to account for the effect of phase change on convection. User-defined functions (UDFs) are compiled for the following two aspects: One is the Darcy source term, and the other is the thermal conductivity, which varies in mushy zones. From the comparisons of two kinds of EMBr produced by two type magnets separately, the new type EMBr gives its superiorities of the effects on the flow field, heat transfer, and solidification with lower cost of electrical energy.