211 citations · 995 across the 22 of their papers we have counts for
12 papers · 1 filter
The effects of interparticle cohesion on the collapse of granular columns
Ram Sudhir Sharma, Wladimir Sarlin, Langqi Xing +3
The presence of interparticle cohesion can drastically change the behavior of granular materials. For instance, powders are challenging to handle, and one can make a sandcastle usi…
Downslope granular flow through a forest of obstacles
Baptiste Darbois Texier, Yann Bertho, Philippe Gondret
We investigate the effect of a forest of pillars on a granular layer steadily flowing over a rough inclined plane. We quantify experimentally how the steady flow rate of grains is…
Collapse dynamics of dry granular columns: from free-fall to quasi-static flow
Wladimir Sarlin, Cyprien Morize, Alban Sauret +1
Gravity-driven collapses involving large amounts of dense granular material, such as landslides, avalanches, or rockfalls, in a geophysical context, represent significant natural h…
Local rheological measurements in the granular flow around an intruder
A. Seguin, C. Coulais, F. Martinez +2
The rheological properties of granular matter within a two-dimensional flow around a moving disk is investigated experimentally. Using a combination of photoelastic and standard te…
Experimental velocity fields and forces for a cylinder penetrating into a granular medium
A. Seguin, Y. Bertho, F. Martinez +2
We present here a detailed granular flow characterization together with force measurements for the quasi-bidimensional situation of a horizontal cylinder penetrating vertically at…
Stability of a granular layer on an inclined "fakir plane"
Jesica Benito, Yann Bertho, Irene Ippolito +1
We present here experimental results on the effect of a forest of cylinder obstacles (nails) on the stability of a granular layer over a rough incline, in a so-called "fakir plane"…
Dense granular flow around a penetrating object: Experiments and hydrodynamic model
Antoine Seguin, Yann Bertho, Philippe Gondret +1
We present in this Letter experimental results on the bidimensional flow field around a cylinder penetrating into dense granular matter together with drag force measurements. A hyd…
Sphere penetration by impact in a granular medium: A collisional process
Antoine Seguin, Yann Bertho, Philippe Gondret +1
The penetration by a gravity driven impact of a solid sphere into a granular medium is studied by two-dimensional simulations. The scaling laws observed experimentally for both the…
Dynamics of grain ejection by sphere impact on a granular bed
Stéphanie Deboeuf, Philippe Gondret, Marc Rabaud
The dynamics of grain ejection consecutive to a sphere impacting a granular material is investigated experimentally and the variations of the characteristics of grain ejection with…
Influence of confinement on granular penetration by impact
Antoine Seguin, Yann Bertho, Philippe Gondret
We study experimentally the influence of confinement on the penetration depth of impacting spheres into a granular medium contained in a finite cylindrical vessel. The presence of…
Granular Avalanches in Fluids
S. Courrech du Pont, P. Gondret, B. Perrin +1
Three regimes of granular avalanches in fluids are put in light depending on the Stokes number St which prescribes the relative importance of grain inertia and fluid viscous effect…
Wall effects on granular heap stability
S. Courrech du Pont, P. Gondret, B. Perrin +1
We investigate the effects of lateral walls on the angle of movement and on the angle of repose of a granular pile. Our experimental results for beads immersed in water are similar…