Comparación entre modelos en diferencias finitas aplicados a la inflitración en suelos

Abstract

Numerical experiments in multiple Representative Elementary Volumes (REVs) are carried out to compare microscopic results with porous media models. The simulation of a microscopic flow that develops through a porous medium of 55, 75 and 95% porosity formed by staggered square cylinders is presented to that purpose. A laminar steady flow regime (1 < Re < 150) is considered together with Péclet numbers in the 10-103 range. The macroscopic porous media model is shown to be in excellent agreement with results obtained averaging microscopic numerical results.