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Clogging transition of many particle systems flowing through bottlenecks
(Scientific Reports, 2014)
When a large set of discrete bodies passes through a bottleneck, the flow may become intermittent due to the development of clogs that obstruct the constriction. Clogging is observed, for instance, in colloidal suspensions, ...
Ergodic nonergodic transition in tapped granular systems; The role of persistent contacts
(Papers in Physics, 2016)
Static granular packs have been studied in the last three decades in the frame of a modi ed equilibrium statistical mechanics that assumes ergodicity as a basic postulate. The canonical example on which this framework is ...
Relevance of system size to the steady state properties of tapped granular systems
(American Physical Society, 2015)
We investigate the steady-state packing fraction ϕ and force moment tensor Σ of quasi-two-dimensional granular columns subjected to tapping. Systems of different height h and width L are considered. We find that ϕ and Σ, ...
Experimental proof of faster is slower in systems of frictional particles flowing through constrictions
(American Physical Society, 2015)
The “faster-is-slower” (FIS) effect was first predicted by computer simulations of the egress of pedestrians through a narrow exit [D. Helbing, I. J. Farkas, and T. Vicsek, Nature (London) 407, 487 (2000)]. FIS refers to ...
Effect of bevelled silo outlet in the flow rate during discharge
(2023-07-29)
We investigate the effect of a bevelled (or slanted) outlet on the discharge rate of mono-sized spheres from a quasi-two-dimensional silo, using the discrete element method. In contrast to hopper discharges, where the ...