Effect of moisture in the drainage of disks in a bidimensional silo

UÑAC, R.O.; VIDALES, A M; GIUBERGIA, A.; PUGNALONI, L.A.

Viña del Mar, Chile

Workshop; Southern Workshop on Granular Materials 2009; 2009

This paper uses a pseudo molecular dynamics technique to analyze the discharge of disks in a bidimensional silo. The disks inside the silo can be dry or wet. The size of avalanches, their occurrence frequency and their average size are studied. Results on the behavior of these parameters as a function of the size of the outlet at the base of the silo are presented and analyzed, comparing the case of dried disks with those for varying moisture content. The behavior obtained for wet disks allows to discuss the effects of cohesive forces and capillary parameters characterizing the flow of disks in a bidimensional silo.