Convezione e processi di transizione di fase liquido/solido: modellistica matematica ed esperimenti numerici in microgravità

Mathematical modelling and numerical simulation of melting experiments of pure metals. The model adopted, recently proposed by Mansutti, Baldoni and Rajagopal (M3AS, 2001), has a multi-physics structure and includes the description of the mushy zone. For this reason it is suitable to focus the process of phase transition at the interface where laboratory experiments have pointed out the occurence of displacements within the solid phase, even in the case of pure materials. The laboratory experiments and related data and output are produced by the group lead by Roberto Montanari , DIM, Univ. Tor Vergata, Rome.