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

Debris flows are among the most catastrophic natural phenomena, attracting the interest of
researchers, engineers and government agencies. The complexity of the physical process …

Data from large‐scale debris‐flow experiments are combined with modeling of particle‐size
segregation to explain the formation of lateral levees enriched in coarse grains. The …

Predicting segregation of granular materials composed of different-sized particles is a
challenging problem. In this paper, we develop and implement a theoretical model that …

Segregation and mixing of dissimilar grains is a problem in many industrial and
pharmaceutical processes, as well as in hazardous geophysical flows, where the size …

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 …

Over the last 25 years a lot of work has been undertaken on constructing continuum models
for segregation of particles of different sizes. We focus on one model that is designed to …

A general continuum theory for particle-size segregation and diffusive remixing in
polydisperse granular avalanches is formulated using mixture theory. Comparisons are …

Debris flows are often described as a succession of surges, which are characterized by
enhanced peak depth and velocity and therefore by a tremendous increase of their …

We experimentally investigated how a binary granular mixture made up of spherical glass
beads (size ratio of 2) behaved when flowing down a chute. Initially, the mixture was …