Continuum modelingof granular and gas-solid flows generally involves the use of a kinetic-
theory (KT) model for the particulate phase, and the most widely used KT models have been …

Using the results of recent numerical simulations, we extend an existing kinetic theory for
dense flows of identical, nearly elastic, frictionless spheres to identical, very dissipative …

We focus on a parcel-based approach, similar to the one used by O'Rourke and Snider,
2010, which tracks the motion of a so-called “parcel” of particles. We derive a scaling law for …

The development of an applicable theory for granular matter—with both qualitative and
quantitative value—is a challenging prospect, given the multitude of states, phases and …

The gravity flow of granular materials through a flat-bottomed rectangular silo is examined
using experiments, the discrete element method (DEM), and continuum models. The flow is …

The physics of granular flows is a fascinating subject because a range of complex collective
behaviour arise from seemingly simple microscopic interactions between the individual …

Granular material is a collection of macroscopic particles that are visible with naked eyes.
The non-equilibrium nature of the granular materials makes their rheology quite different …

The hydrodynamics of the dense granular flow of rough inelastic particles down an inclined
plane is analysed using constitutive relations derived from kinetic theory. The basic …

In this study the flow rate in a quasi-2D hopper with two symmetric outlets was investigated
numerically. When two outlets merge into one, the flow rate is obviously bigger than that with …

Shear flows of inelastic spheres in three dimensions in the volume fraction range 0.4–0.64
are analysed using event-driven simulations. Particle interactions are considered to be due …