The granular silo as a continuum plastic flow: The hour-glass vs the clepsydra
The granular silo as a continuum plastic flow: The hour-glass vs the clepsydra
The granular silo is one of the many interesting illustrations of the thixotropic property of granular matter: a rapid flow develops at the outlet, propagating upwards through a dense shear flow while material at the bottom corners of the container remains static. For large enough outlets, the discharge flow is …