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5 papers · 1 filter
On dense granular flows
GdR Midi
The behaviour of dense assemblies of dry grains submitted to continuous shear deformation has been the subject of many experiments and discrete particle simulations. This paper is…
Fluctuating particle motion during shear induced granular compaction
O. Pouliquen, M. Belzons, M. Nicolas
Using a refractive index matching method, we investigate the trajectories of particles in a three dimensional granular packing submitted to cyclic shear deformation. The particle m…
Monodisperse Dry Granular Flows on Inclined Planes : Role of Roughness
C. Goujon, N. Thomas, B. Dalloz-Dubrujeaud
Recent studies have pointed out the importance of the basal friction on the dynamics of granular flows. We present experimental results on the influence of the roughness of the inc…
Long surface wave instability in dense granular flows
Y. Forterre, O. Pouliquen
In this paper we present an experimental study of the long surface wave instability that can develop when a granular material flows down a rough inclined plane. The threshold and t…
Transition to turbulence in particulate pipe flow
Jean-Philippe Matas, Jeffrey F. Morris, Elisabeth Guazzelli
We investigate experimentally the influence of suspended particles on the transition to turbulence. The particles are monodisperse and neutrally-buoyant with the liquid. The role o…