Dynamic transition in conveyor belt driven granular flow

We consider the flow of disks of diameter d driven by a conveyor belt of dynamic friction coefficient μ through an aperture on a flat barrier. The flow rate presents two distinct regimes. At low belt velocities v the flow rate is proportional to v and to the aperture width A. However, beyond a criti...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Cordero, José, Pugnaloni, Luis
Formato: Artículo publishedVersion
Lenguaje:Inglés
Inglés
Publicado: Elsevier 2018
Materias:
Conveyor belt; Granular flow; Granular discharge
Acceso en línea:http://hdl.handle.net/20.500.12272/2769
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-2769
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
Inglés
topic Conveyor belt; Granular flow; Granular discharge
spellingShingle Conveyor belt; Granular flow; Granular discharge
Cordero, José
Pugnaloni, Luis
Dynamic transition in conveyor belt driven granular flow
topic_facet Conveyor belt; Granular flow; Granular discharge
description We consider the flow of disks of diameter d driven by a conveyor belt of dynamic friction coefficient μ through an aperture on a flat barrier. The flow rate presents two distinct regimes. At low belt velocities v the flow rate is proportional to v and to the aperture width A. However, beyond a critical velocity, the flow rate becomes independent of v and proportional to (A − kd)3/2 in correspondence with a two-dimensional Beverloo scaling. In this high-velocity regime we also show that the flow rate is proportional to μ1/2. We discuss that these contrasting behaviors arise from the competition between two characteristic time scales: the typical time a disk takes to stop on the belt after detaching from the granular pack and the time it takes to reach the aperture.
format Artículo
publishedVersion
Artículo
author Cordero, José
Pugnaloni, Luis
author_facet Cordero, José
Pugnaloni, Luis
author_sort Cordero, José
title Dynamic transition in conveyor belt driven granular flow
title_short Dynamic transition in conveyor belt driven granular flow
title_full Dynamic transition in conveyor belt driven granular flow
title_fullStr Dynamic transition in conveyor belt driven granular flow
title_full_unstemmed Dynamic transition in conveyor belt driven granular flow
title_sort dynamic transition in conveyor belt driven granular flow
publisher Elsevier
publishDate 2018
url http://hdl.handle.net/20.500.12272/2769
work_keys_str_mv AT corderojose dynamictransitioninconveyorbeltdrivengranularflow
AT pugnaloniluis dynamictransitioninconveyorbeltdrivengranularflow
bdutipo_str Repositorios
_version_ 1764820552649801728

Ejemplares similares