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This work aims to predict the solidification phenomenon of an alloy of aluminum- silicon using the computational simulation technique. The model proposed includes the solidification kinetics as well as the phenomena related to the energy and chemical species transport into the liquid and solid phases taking into account the solute redistribution phenomenon. The partial differential equations modeling the involved phenomena are solved based on the finite volume technique and the thermophysical properties are modeled by correlations reported in the literature. Among the simulation parameters, the thermal resistance between metal and mould was paid special attention due to its influence into the temperature distribution of the metal layer as well as the heat flux. In addition, the influence of the casting velocity and layer thickness of the solidified product were investigated. Among the important results the temperature and solute distribution fields at the solid and liquid phases are presented. The calculated results for the temperature and solute distribution fields are in good agreement with those measured formerly reported in the literature.

SIMULAÇÃO DA SOLIDIFICAÇÃO DE UMA LIGA DE ALUMÍNIO-SILICIO EM UM PROCESSO DE CINTO ÚNICO