When a gravity-driven solid-fluid mixture, such as those in geophysical flows, hits a wall-like
rigid obstacle, a metastable jammed zone called hydrodynamic dead zone (HDZ) may …

The drag force law acting on a moving circular disk in a two-dimensional granular medium is
analyzed based on the discrete element method (DEM). It is remarkable that the drag force …

Dynamic behaviors of non-circular dense granular jets impacting a sufficiently large target
are studied by experiment and DEM simulation. Effects of the granular jet velocity, particle …

This study numerically and analytically investigates the dynamics of a rotor under viscous or
dry friction as a nonequilibrium probe of a granular gas. In order to demonstrate the role of …

Dynamic behaviors of dense granular jets impacting a flat target are experimentally studied
and numerically simulated using the Discrete Element Method. Effects of the granular jet …

It was reported that a sheet-like or cone-like shock forms when a granular jet, composed of
spherical glass beads impacts a fixed target. The discrete element method (DEM) was …

Results in the literature show that a granular film appears from a dense granular jet
impacting on a circular target under certain conditions (Cheng X, Varas G, Citron D, Jaeger …

We study head-on impacts of equal-speed but unequal-width incompressible jets in two
dimensions with a focus on dense granular jets. We use discrete particle simulations to …

Particle flows injected as beams and scattered by an intruder are numerically studied. We
find a crossover of the drag force from Epstein's law to Newton's law, depending on the ratio …

Dynamic behaviors of a dense granular jet impacting on a circular target are numerically
studied by Discrete Element Method (DEM), and the simulation results are compared with …