Abstract
A mathematical model has been developed to describe the velocity, temperature and solid fraction in an electromagnetically stirred Al-5%Cu alloy in which 15% B4C particles were initially suspended. In the model, we allowed for the rheology of the melt-solid slurry and the release of latent heat either at the melt-solid interface, in the bulk or at an intermediate stage between those extremes. The calculations have shown that the evolution of the temperature and solid fraction profiles were not significantly affected, either by the stirring rate or by the choice of the location of release of latent heat.