Mathematical simulation of the thermal Field during continuous casting process by a nonorthogonal coordinate Transformation formalism

A numerical technique, which includes a nonorthogonal coordinate transformation, a control volume based discretisation scheme and a method of search for determining the location of solid-liquid interface is developed for solving the thermal field during solidification process by continuous casting operation. The formulation is applied to continuous casting process of Al-Mg alloy cylindrical ingot. The theoretical prediction of the interface is in good agreement with the experimentally measured interface.