MODELING OF DRYING IN CAPILLARY-POROUS MEDIA - A DISCRETE APPROACH

Drying experiments are carried out in two-dimensional etched networks under quasi-isothermal conditions. The evolution of phase distribution s within the network are visualized and compared to numerical discrete simulations. The phase evolution determined by numerical simulations agrees very well with experimental results. However, the comparison be tween numerical and experimental drying kinetics does not show good ag reement. The differences are explained by the presence of liquid films on the micromodel walls and edges during drying. These films are not taken into account in the numerical model.