Estimation of the Thermophysical Properties of the Soil by Inverse Problem, using Experimental Data during Liquid/Vapour Phase Change

MANSOUR, S.; ÉDOUARD CANOT; MUHIEDDINE, M.; RAMIRO J, MARCH; JOSÉ AGUSTÍN CORDERO

Padova

Conferencia; 7th International Conference on Porous Media & Annual Meeting; 2015

International Society for Porous Media

In this work, we introduce a numerical strategy to estimate the thermophysical properties of the soil of a saturated porous medium (volumetric heat capacity (pC)s, thermal conductivity s and porosity, where a phase change problem (liquid/vapour) appears due to intense heating from above. An inverse problem is used to estimate these properties knowing the experimental heating history curves at selected positions of the porous medium throughout the whole heating duration. The system (to be solved) is composed of the heat diffusion equation (1) together with three sensitivity equations resulting from differentiating that equation with respect to the three unknown parameters.