Granular materials composed of particles with differing grain sizes, densities, shapes, or
surface properties may experience unexpected segregation during flow. This review focuses …

During the last fifteen years there has been a paradigm shift in the continuum modelling of
granular materials; most notably with the development of rheological models, such as the …

The incompressible-rheology with low-Stokes-number experiments, which incompressible
models fail to describe. The combination of granular rheology, pore pressure and drag …

Granular flows occur in a wide range of situations of practical interest to industry, in our
natural environment and in our everyday lives. This paper focuses on granular flow in the so …

In this paper a fully coupled particle-size segregation model for granular flows (Barker et al.,
J. Fluid Mech., vol. 909, 2021, p. A22) is used to simulate the development of the patterns in …

Dense granular flows can spontaneously self-channelise by forming a pair of parallel-sided
static levees on either side of a central flowing channel. This process prevents lateral …

Vertical chutes and pipes are a common component of many industrial apparatus used in
the transport and processing of powders and grains. Here, a typical arrangement is …

Among the geophysical surface processes, mud and debris flows show one of the most
complex and challenging behaviour for scientists and modellers. These flows consist of …

Shear dilatation/contraction of granular materials has long been recognized as an important
process in granular flows but a comprehensive theoretical description of this process for a …

This work uses the discrete-element method to investigate bidisperse dense granular flow
with large and small grains in a two-dimensional hopper. A half-circular dynamical force …