Controlled Viscosity in Dense Granular Materials

• Published in: Physical review letters Vol. 120; no. 13; p. 138001
• Main Authors: Gnoli, A, de Arcangelis, L, Giacco, F, Lippiello, E, Ciamarra, M Pica, Puglisi, A, Sarracino, A
• Format: Journal Article
• Language: English
• Published: United States 30.03.2018

We experimentally investigate the fluidization of a granular material subject to mechanical vibrations by monitoring the angular velocity of a vane suspended in the medium and driven by an external motor. On increasing the frequency, we observe a reentrant transition, as a jammed system first enters...