The paper presents a model for particle–particle and particle–wall collisions during interface-
resolving numerical simulations of particle-laden flows. The accurate modelling of collisions …

The influence of a liquid film on the coefficient of restitution (COR) is investigated
experimentally by tracing freely falling particles bouncing on a wet surface. The dependence …

Simulations of wet fluidized beds of particles in small periodic domains have been carried
out using a CFD-DEM approach. A liquid bridge forms upon particle–particle collision, which …

From our childhood, we remember the pasty consistency of wet sand, out of which we baked
our first 'cakes' in the sand box; soft enough to be squished and formed by our little hands …

The emergence of Newton's cradle is promising for fast substance transport, which attracts
tremendous attentions for industrial applications. Herein, an ultrafast and highly selective …

The normal coefficient of restitution (COR) for a spherical particle bouncing on a wet plane is
investigated experimentally and compared with a model characterizing the energy loss at …

Lubrication forces play a major role in the behaviour of fluid–solid systems, where they affect
the collisions between particles. Current implementations of lubrication forces in unresolved …

The oblique impacts of nanoclusters are studied theoretically and by means of molecular
dynamics. In simulations we explore two models—Lennard-Jones clusters and particles with …

Clustering is often presumed to lead to enhanced agglomeration between cohesive grains
due to the reduced relative velocities of particles within a cluster. Our discrete-particle …

We present results from a combined numerical and experimental investigation into the
squeeze flow induced when a solid sphere impacts onto a thin, ultra-viscous film of non …