Etude expérimentale et théorique des transferts dans les sols aux faibles teneurs en eau
Résumé
Non-equilibrium phase change allows us to describe vapour water transfer in a soil, in particular in the pendular domain. A non equilibrium phase change law obtained by the Thermodynamics of Irreversible Processes is presented. Its phenomenological coefficient is experimentally determined. Simulation of the drying of a soil column is presented. Because the non linearity of the phase change law is considered results are in good agreement with experiments.