This paper provides a review on the flow of free-flowing coarse particles inside silos. Basic
principles and elementary mechanisms involved in gravity flow of granular materials are …

The discrete element method (DEM) is a numerical tool often used by engineers and
researchers to design, analyse and improve bulk materials handling systems. However, the …

The discrete element method (DEM) is used extensively for the simulation of granular
materials and in powder technology. Averaging or coarse graining (CG) techniques, also …

As sewer pipes age, cracks and other forms of structural damage may develop leading to
soil infiltration into the pipes that can cause sinkholes and damage the overlying roads and …

Outflow of granular material through a small orifice is a fundamental process in many
industrial fields, for example in silo discharge, and in everyday's life. Most experimental …

Granular material flowing through bottlenecks, like the openings of silos, tend to clog and
thus inhibit further flow. We study this phenomenon in a three-dimensional hopper for …

Soft, low-friction particles in silos show peculiar features during their discharge. The outflow
velocity and the clogging probability both depend upon the momentary silo fill height, in …

Abstract Two-dimensional (2D) hopper flow of disks has been extensively studied. Here, we
investigate hopper flow of ellipses with aspect ratio $\alpha= 2$, and we contrast that …

Abrasive wear of the orifice cannot be avoided for a hopper which should be operated
uninterruptedly for a long time in engineering applications. Consequently, the change of the …

Outflow of granular materials from silos is a remarkably complex physical phenomenon that
has been extensively studied with simple objects like monodisperse hard disks in two …