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5 papers · 2 filters
A model for the onset of oscillations near the stopping angle in an inclined granular flow
Danielle Tan, Patrick Richard, James T. Jenkins
We propose an explanation for the onset of oscillations seen in numerical simulations of dense, inclined flows of inelastic, frictional spheres. It is based on a phase transition b…
Extension of a suspended soap film: A homogeneous dilatation followed by new film extraction
Jacopo Seiwert, Martin Monloubou, Benjamin Dollet +1
Liquid foams are widely used in industry for their high effective viscosity, whose local origin is still unclear. This Letter presents new results on the extension of a suspended s…
Confined packings of frictionless spheres and polyhedra
Jean-François Camenen, Yannick Descantes, Patrick Richard
By means of numerical simulations, we study the influence of confinement on three-dimensional random close packed (RCP) granular materials subject to gravity. The effects of grain…
Liquid meniscus friction on a wet plate: Bubbles, lamellae and foams
Isabelle Cantat
Many microfluidics devices, coating processes or diphasic flows involve the motion of a liquid meniscus on a wet wall. This motion induces a specific viscous force, that exhibits a…
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…