Role of driving force on the clogging of inert particles in a bottleneck

Roberto Arévalo, Iker Zuriguel, Diego Maza, and Angel Garcimartín
Phys. Rev. E 89, 042205 – Published 18 April 2014
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Abstract

We present numerical results of the effect that the driving force has on the clogging probability of inert particles passing through a bottleneck. When the driving force is increased by four orders of magnitude, the mean avalanche size remains almost unaltered (increases 1.6 times) while the flow rate and the avalanche duration display strong dependence on this magnitude. This indicates that in order to characterize the ability of a system to clog, the right variable to consider is the number of particles that pass through the outlet. The weak dependence of this magnitude on the driving force is explained in terms of the average kinetic energy of the flowing grains that has to be dissipated in order to get an arch stabilized.

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  • Received 10 September 2013

DOI:https://doi.org/10.1103/PhysRevE.89.042205

©2014 American Physical Society

Authors & Affiliations

Roberto Arévalo

  • CNR-SPIN, Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126, Napoli, Italy

Iker Zuriguel*, Diego Maza, and Angel Garcimartín

  • Departamento de Física, Facultad de Ciencias, Universidad de Navarra, 31080 Pamplona, Spain

  • *iker@unav.es

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Vol. 89, Iss. 4 — April 2014

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