NUMERICAL SIMULATION OF CASTING PROCESSES: COUPLED MOULD FILLING AND SOLIDIFICATION USING VOF AND ENTHALPY-POROSITY METHOD

Within the scope of industrial casting applications a numerical model for the simultaneous mould filling and solidification process has been formulated, implemented in OpenFOAM and successfully validated using analytical and experimental data. In order to account for the developing of free surface flow and the liquid/solid phase change, respectively, the Volume-Of-Fluid and enthalpy-porosity method have been coupled under a volume averaging framework on a fixed Eulerian grid. The coupled method captures the basic physical effects of a combined mould filling and solidification process and provides a trustful method for comprehensive casting simulations.