186 citations · 1.1k across the 33 of their papers we have counts for
6 papers · 1 filter
Rheology of dense vibrated granular flows: non-monotonic response controlled by granular temperature
A. Plati, G. Petrillo, L. de Arcangelis +4
We study the rheology of dense granular materials subjected to vertical vibration {by} using numerical simulations of a stress-imposed vane rheometer. The effective viscosity incre…
Controlled viscosity in dense granular materials
A. Gnoli, L. de Arcangelis, F. Giacco +4
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 driv…
Unified rheology of vibro-fluidized dry granular media: From slow dense flows to fast gas-like regimes
Andrea Gnoli, Antonio Lasanta, Alessandro Sarracino +1
Granular media take on great importance in industry and geophysics, posing a severe challenge to materials science. Their response properties elude known soft rheological models, e…
Brownian ratchet in a thermal bath driven by Coulomb friction
A. Gnoli, A. Petri, F. Dalton +4
The rectification of unbiased fluctuations, also known as the ratchet effect, is normally obtained under statistical non-equilibrium conditions. Here we propose a new ratchet mecha…
Dynamics of a massive intruder in a homogeneously driven granular fluid
A. Puglisi, A. Sarracino, G. Gradenigo +1
A massive intruder in a homogeneously driven granular fluid, in dilute configurations, performs a memory-less Brownian motion with drag and temperature simply related to the averag…
Structure factors in granular experiments with homogeneous fluidization
A. Puglisi, A. Gnoli, G. Gradenigo +2
Velocity and density structure factors are measured over a hydrodynamic range of scales in a horizontal quasi-2d fluidized granular experiment, with packing fractions $ϕ\in[10%,40%…