79 citations · 432 across the 14 of their papers we have counts for
9 papers · 1 filter
Experimental assessment of the effective friction at the base of granular chute flows on smooth incline
Olivier Roche, Siet van den Wildenberg, Alexandre Valance +4
We report on direct measurements of the basal force components for granular material flowing down a smooth incline. We investigate granular flows for a large range of inclination a…
Influence of lateral confinement on granular flows: comparison between shear-driven and gravity-driven flows
Patrick Richard, Riccardo Artoni, Alexandre Valance +1
The properties of confined granular flows are studied through discrete numerical simulations. Two types of flows with different boundaries are compared: (i) gravity-driven flows to…
High-speed confined granular flows down inclines revisited
Y. Zhu, R. Delannay, A. Valance
Recent numerical work has shown that high-speed confined granular flows down inclines exhibit a rich variety of flow patterns, including dense unidirectional flows, flows with long…
New patterns in high-speed granular flows
Nicolas Brodu, Renaud Delannay, Alexandre Valance +1
We report on new patterns in high-speed flows of granular materials obtained by means of extensive numerical simulations. These patterns emerge from the destabilization of unidirec…
Shallow granular flows down flat frictional channels: steady flows and longitudinal vortices
Nicolas Brodu, Patrick Richard, Renaud Delannay
Granular flows down inclined channels with smooth boundaries are common in nature and in the industry. Nevertheless, the common setup of flat boundaries has comparatively been much…
Experimental evidence of ageing and slow restoration of the weak-contact configuration in tilted 3D granular packings
Sébastien Kiesgen De Richter, Vladimir Zaitsev, Patrick Richard +3
Granular packings slowly driven towards their instability threshold are studied using a digital imaging technique as well as a nonlinear acoustic method. The former method allows u…
Experimental growth law for bubbles in a "wet" 3D liquid foam
Jérôme Lambert, Rajmund Mokso, Isabelle Cantat +4
We used X-ray tomography to characterize the geometry of all bubbles in a liquid foam of average liquid fraction and to follow their evolution, measuring the norm…
Experimental evidence of flow destabilization in a 2D bidisperse foam
Isabelle Cantat, Celine Poloni, Renaud Delannay
Liquid foam flows in a Hele-Shaw cell were investigated. The plug flow obtained for a monodisperse foam is strongly perturbed in the presence of bubbles whose size is larger than t…
Dissipative flows of 2D foams
Isabelle Cantat, Renaud Delannay
We analyze the flow of a liquid foam between two plates separated by a gap of the order of the bubble size (2D foam). We concentrate on the salient features of the flow that are in…