Internal imaging using index matching, and sensitive volume measurement, are used to
investigate the spatial order and dynamics of a deep disordered layer of spheres sheared …

Experiments on spherical particles in a 3D annular shear cell vibrated from below and
sheared from above show a hysteretic freezing or melting transition. Under sufficient …

The Boltzmann equation for inelastic and rough hard spheres is considered as a model of a
dilute granular gas. In this model, the collisions are characterized by constant coefficients of …

We consider a dilute granular gas of hard spheres colliding inelastically with coefficients of
normal and tangential restitution α and β⁠, respectively. The basic quantities characterizing …

The aim of this work is to explore the combined effect of polydispersity and roughness on the
partial energy production rates and on the total cooling rate of a granular fluid mixture. We …

The most widely used model for granular gases is perhaps the inelastic hard-sphere model
(IHSM), where the grains are assumed to be perfectly smooth spheres colliding with a …

We consider dense rapid shear flow of inelastically colliding hard disks. Navier-Stokes
granular hydrodynamics is applied accounting for the recent finding that shear viscosity …

A polydisperse granular gas made of inelastic and rough hard disks is considered. Focus is
laid on the kinetic-theory derivation of the partial energy production rates and the total …

The dynamical properties of a tracer or impurity particle immersed in a host gas of inelastic
and rough hard spheres in the homogeneous cooling state is studied. Specifically, the …

Granular gas mixtures modeled as systems of inelastic and rough particles, either hard disks
on a plane or hard spheres, are considered. Both classes of systems are embedded in a …