A PHASE-CHANGE TEMPERATURE-BASED FORMULATION INCLUDING GENERAL LATENT-HEAT EFFECTS

A phase-change temperature-based formulation including general latent heat effects is presented. These effects are taken into account by mea ns of an explicit ''phase-change function'' (or liquid fraction-temper ature relationship in a more specific context) defined analytically or based on experimental measurements. The behaviour of different functi ons is studied and compared. The finite element equations of this form ulation are also described. Finally, a numerical example is analysed t o illustrate the performance of the proposed methodology.