On the numerical solution of a mathematical model for the concrete carbonation with a non-uniform diffusivity coefficient
DOI:
https://doi.org/10.17268/sel.mat.2021.02.01Keywords:
concrete carbonation, reaction-diffusion problem, finite difference method, volume finite method.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.
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