Discrete Element Modelling (DEM)
helpful resources Discrete element modelling involves calculating the motion of thousands of individual particles as the bump against wall and other particles.
http://www.fastighetsaktien.com/index.php?option=com_k2&view=item&id=12044:catella-kag-s%C3%A4ljer-bravida-huset-vid-telefonplan&Itemid=335 By using a reasonable estimation of particle shape and coefficient of friction DEM can approximately reproduce the flow behaviour of many granular materials in free flowing situations. Reproducing the initiation of flow for material that has been allowed to consolidate in hoppers, bins, silos or wagons is more difficult. See the “Example DEM Angle of Repose” portfolio page for more information.free miami dating site