Experimental study of a 3D dry granular medium submitted to horizontal shaking

Ahmed Raihane (1, 2, 3) , Olivier Bonnefoy (1, 2, 3) , Jean-Louis Gelet (4) , Jean-Marc Chaix (5) , Gérard Thomas (1, 2, 3)

1 SPIN-ENSMSE - Centre Sciences des Processus Industriels et Naturels
2 P2MC-ENSMSE - Département Poudres et Matériaux Multi-Composants
3 LPMG-EMSE - Laboratoire des Procédés en Milieux Granulaires
4 Ferraz-Shawmut
5 SIMaP - Science et Ingénierie des Matériaux et Procédés

This experimental work consists in a study of the influence of horizontal sinusoidal vibrations on the behaviour of a 3D sand granular medium. A transition from jammed or glassy states to a fluidized state has been observed for critical acceleration increasing with the frequency. Convective patterns have been encountered and characterised: two cylindrical counter-rotating rolls have been observed in the top of the packing. In addition, for high acceleration values, more complex patterns appear. The free surface at the top of the packing presents different shapes called “dome”, “dromedary” or “camel” depending on acceleration. One or three humps can be found. Analysis of grain movements and velocities along the walls of the container has been carried out and show that a stationary state can be reached after a transient regime. Finally the mechanisms of material transport through convective motion have been discussed.

Mots clés: Horizontal vibrations; Sand granular medium; Fluidization; Convection; Steady state

Domaines: Génie des procédés

Ahmed Raihane, Olivier Bonnefoy, Jean-Louis Gelet, Jean-Marc Chaix, Gérard Thomas. Experimental study of a 3D dry granular medium submitted to horizontal shaking. Powder Technology, 2009, 190 (1-2), pp.252-257. ⟨10.1016/j.powtec.2008.04.068⟩. ⟨hal-00410199⟩