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A differential equation for the flow rate during silo discharge

Subtitle: Beyond the Beverloo rule
Document type: Articulo

Abstract

We present a differential equation for the flow rate of granular materials during the discharge of a silo. This is based in the energy balance of the variable mass system in contrast with the traditional derivations based on heuristic postulates such as the free fall arch. We show that this new equation is consistent with the well known Beverloo rule, providing an independent estimate for the universal Beverloo prefactor. We also find an analytic expression for the pressure under discharging conditions.

General information

Issue date: 30 de junio de 2017
Document language: English
Journal: EPJ Web of Conferences; vol. 140
Event: Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media
Origin: Facultad de Ciencias Exactas
ISSN: 2100-014X
Pages: 1-4
xmlui.dri2xhtml.METS-1.0.item-dc-subject: Energy balance ; Beverloo rule ; Discharge of grains
Subjects: Ciencias Exactas

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Created: 28 de agosto de 2020
Available since: 28 de agosto de 2020
Please, use one of this identificators(URI) for cite o linking this item:
  • http://sedici.unlp.edu.ar/handle/10915/103402
  • https://doi.org/10.1051/epjconf/201714003041

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    Creative Commons Attribution 4.0 International (CC BY 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution 4.0 International (CC BY 4.0)