Non-monotonic dependence of avalanche durations on particle velocities in the discharge of a silo

The distributions of avalanche times between successive clog events are analyzed in a silo discharged with a conveyor belt. In a previous work [Phys. Rev. Lett. 121, 138001 (2018)], we measured the distribution of avalanche sizes (in number of particles) for the same experiment, finding a monotonous...

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Main Authors: Gella Diego, Maza Diego, Zuriguel Iker
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_03007.pdf
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author Gella Diego
Maza Diego
Zuriguel Iker
author_facet Gella Diego
Maza Diego
Zuriguel Iker
author_sort Gella Diego
collection DOAJ
description The distributions of avalanche times between successive clog events are analyzed in a silo discharged with a conveyor belt. In a previous work [Phys. Rev. Lett. 121, 138001 (2018)], we measured the distribution of avalanche sizes (in number of particles) for the same experiment, finding a monotonous influence of both the outlet size and the velocity of particles in the clogging probability. Nonetheless, if avalanche durations are analyzed instead of avalanche sizes, a minimum is observed when representing the mean avalanche time as function of the velocity of particles. This phenomenon is explained using kinematic arguments, which are validated by experimental data. At the same time, this work aims at highlighting the importance of discerning between measuring clogging avalanches in terms of times or doing it in terms of number of particles.
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spelling doaj.art-44d928729d794d758975cf11212ee47b2022-12-21T20:28:25ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012490300710.1051/epjconf/202124903007epjconf_pg2021_03007Non-monotonic dependence of avalanche durations on particle velocities in the discharge of a siloGella Diego0Maza Diego1Zuriguel Iker2Departamento de Física y Matemática Aplicada, Facultad de Ciencias, Universidad de NavarraDepartamento de Física y Matemática Aplicada, Facultad de Ciencias, Universidad de NavarraDepartamento de Física y Matemática Aplicada, Facultad de Ciencias, Universidad de NavarraThe distributions of avalanche times between successive clog events are analyzed in a silo discharged with a conveyor belt. In a previous work [Phys. Rev. Lett. 121, 138001 (2018)], we measured the distribution of avalanche sizes (in number of particles) for the same experiment, finding a monotonous influence of both the outlet size and the velocity of particles in the clogging probability. Nonetheless, if avalanche durations are analyzed instead of avalanche sizes, a minimum is observed when representing the mean avalanche time as function of the velocity of particles. This phenomenon is explained using kinematic arguments, which are validated by experimental data. At the same time, this work aims at highlighting the importance of discerning between measuring clogging avalanches in terms of times or doing it in terms of number of particles.https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_03007.pdf
spellingShingle Gella Diego
Maza Diego
Zuriguel Iker
Non-monotonic dependence of avalanche durations on particle velocities in the discharge of a silo
EPJ Web of Conferences
title Non-monotonic dependence of avalanche durations on particle velocities in the discharge of a silo
title_full Non-monotonic dependence of avalanche durations on particle velocities in the discharge of a silo
title_fullStr Non-monotonic dependence of avalanche durations on particle velocities in the discharge of a silo
title_full_unstemmed Non-monotonic dependence of avalanche durations on particle velocities in the discharge of a silo
title_short Non-monotonic dependence of avalanche durations on particle velocities in the discharge of a silo
title_sort non monotonic dependence of avalanche durations on particle velocities in the discharge of a silo
url https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_03007.pdf
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AT zurigueliker nonmonotonicdependenceofavalanchedurationsonparticlevelocitiesinthedischargeofasilo