Aferição de Modelo Matemático em 2D no software Matlab para a solidificação das ligas Al-4,5%Cu e Al-15%Cu

Abstract

In the present work is the theoretical-experimental comparison to gauge a model developed in Matlab software and the object of study were two leagues aluminum-copper system, which are al-4, 5% Cu and Al-15% Cu. The model is based on finite difference method, considering a 2D representation for the mold used, for the walls is widespread numeric code, which can be considered a situation of insulated wall and natural convection air. In the program there is still the need to implement the thermo-physical characteristics of the alloys studied and it primarily generates graphs, in which the cooling curves show theoretical and experimental animation and also the color that represents the two-dimensional heat extraction. The parameter used to assess the model was hi. Both the experimental curve as well as the hi acceptable been determined taking into consideration that it is a numerical approximation.