Sobre la solución numérica de un modelo matemático para la carbonatación del concreto con coeficiente de difusividad no uniforme

Abstract

In this research, a mathematical model to determine the concentration of concrete carbonation is investigated using several numerical schemes which provide the distribution of carbonation in a concrete region. This model considers an Arrhenius-type relation which implies a non-uniform diffusion coefficient for a reaction- diffusion problem in the model. To perform the computations of the model investigated, the finitedifferences and finite-volume methods are employed which are implemented in the mathematical software GNU-Octave and the finite-volume software OpenFOAM respectively.