Effect of hopper angle on granular clogging
We present experimental results of the effect of the hopper angle on the clogging of grains discharged from a two-dimensional silo under gravity action. We observe that the probability of clogging can be reduced by three orders of magnitude by increasing the hopper angle. In addition, we find that f...
| Autores: | , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Universidad de Navarra |
| Repositorio: | Dadun. Depósito Académico Digital de la Universidad de Navarra |
| Idioma: | inglés |
| OAI Identifier: | oai:dadun.unav.edu:10171/56656 |
| Acceso en línea: | https://hdl.handle.net/10171/56656 |
| Access Level: | acceso abierto |
| Palabra clave: | Área Física y Ciencias del Espacio |
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Effect of hopper angle on granular cloggingLópez-Rodríguez, D. (Diego)|||/items/55074917-b743-4936-99df-d51001c4c73dGella, D. (Diego)|||/items/1c14a056-42bf-4884-a05e-ee419b14849dTo, K. (Kiwing)|||/items/6f53c18d-902e-4346-ac80-9fff0f61d875Maza-Ozcoidi, D. (Diego)|||/items/039937b4-6e5c-4e2c-abd9-846d532683e0Garcimartín-Montero, Á. (Ángel)|||/items/2eb3c563-4d7b-4ded-986c-49e9e7c02858Zuriguel-Ballaz, Í. (Íker)|||/items/34630ddb-a186-4b1f-b297-956f7debf538Área Física y Ciencias del EspacioWe present experimental results of the effect of the hopper angle on the clogging of grains discharged from a two-dimensional silo under gravity action. We observe that the probability of clogging can be reduced by three orders of magnitude by increasing the hopper angle. In addition, we find that for very large hopper angles, the avalanche size (s) grows with the outlet size (D) stepwise, in contrast to the case of a flat-bottom silo for which s grows smoothly with D. This surprising effect is originated from the static equilibrium requirement imposed by the hopper geometry to the arch that arrests the flow. The hopper angle sets the bounds of the possible angles of the vectors connecting consecutive beads in the arch. As a consequence, only a small and specific portion of the arches that jam a flat-bottom silo can survive in hoppers.Dadun. Depósito Académico Digital Universidad de Navarra20192019-03-2520192019-01-0120192019-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10171/56656reponame:Dadun. Depósito Académico Digital de la Universidad de Navarrainstname:Universidad de NavarraInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:dadun.unav.edu:10171/566562026-06-21T12:47:57Z |
| dc.title.none.fl_str_mv |
Effect of hopper angle on granular clogging |
| title |
Effect of hopper angle on granular clogging |
| spellingShingle |
Effect of hopper angle on granular clogging López-Rodríguez, D. (Diego)|||/items/55074917-b743-4936-99df-d51001c4c73d Área Física y Ciencias del Espacio |
| title_short |
Effect of hopper angle on granular clogging |
| title_full |
Effect of hopper angle on granular clogging |
| title_fullStr |
Effect of hopper angle on granular clogging |
| title_full_unstemmed |
Effect of hopper angle on granular clogging |
| title_sort |
Effect of hopper angle on granular clogging |
| dc.creator.none.fl_str_mv |
López-Rodríguez, D. (Diego)|||/items/55074917-b743-4936-99df-d51001c4c73d Gella, D. (Diego)|||/items/1c14a056-42bf-4884-a05e-ee419b14849d To, K. (Kiwing)|||/items/6f53c18d-902e-4346-ac80-9fff0f61d875 Maza-Ozcoidi, D. (Diego)|||/items/039937b4-6e5c-4e2c-abd9-846d532683e0 Garcimartín-Montero, Á. (Ángel)|||/items/2eb3c563-4d7b-4ded-986c-49e9e7c02858 Zuriguel-Ballaz, Í. (Íker)|||/items/34630ddb-a186-4b1f-b297-956f7debf538 |
| author |
López-Rodríguez, D. (Diego)|||/items/55074917-b743-4936-99df-d51001c4c73d |
| author_facet |
López-Rodríguez, D. (Diego)|||/items/55074917-b743-4936-99df-d51001c4c73d Gella, D. (Diego)|||/items/1c14a056-42bf-4884-a05e-ee419b14849d To, K. (Kiwing)|||/items/6f53c18d-902e-4346-ac80-9fff0f61d875 Maza-Ozcoidi, D. (Diego)|||/items/039937b4-6e5c-4e2c-abd9-846d532683e0 Garcimartín-Montero, Á. (Ángel)|||/items/2eb3c563-4d7b-4ded-986c-49e9e7c02858 Zuriguel-Ballaz, Í. (Íker)|||/items/34630ddb-a186-4b1f-b297-956f7debf538 |
| author_role |
author |
| author2 |
Gella, D. (Diego)|||/items/1c14a056-42bf-4884-a05e-ee419b14849d To, K. (Kiwing)|||/items/6f53c18d-902e-4346-ac80-9fff0f61d875 Maza-Ozcoidi, D. (Diego)|||/items/039937b4-6e5c-4e2c-abd9-846d532683e0 Garcimartín-Montero, Á. (Ángel)|||/items/2eb3c563-4d7b-4ded-986c-49e9e7c02858 Zuriguel-Ballaz, Í. (Íker)|||/items/34630ddb-a186-4b1f-b297-956f7debf538 |
| author2_role |
author author author author author |
| dc.contributor.none.fl_str_mv |
Dadun. Depósito Académico Digital Universidad de Navarra |
| dc.subject.none.fl_str_mv |
Área Física y Ciencias del Espacio |
| topic |
Área Física y Ciencias del Espacio |
| description |
We present experimental results of the effect of the hopper angle on the clogging of grains discharged from a two-dimensional silo under gravity action. We observe that the probability of clogging can be reduced by three orders of magnitude by increasing the hopper angle. In addition, we find that for very large hopper angles, the avalanche size (s) grows with the outlet size (D) stepwise, in contrast to the case of a flat-bottom silo for which s grows smoothly with D. This surprising effect is originated from the static equilibrium requirement imposed by the hopper geometry to the arch that arrests the flow. The hopper angle sets the bounds of the possible angles of the vectors connecting consecutive beads in the arch. As a consequence, only a small and specific portion of the arches that jam a flat-bottom silo can survive in hoppers. |
| publishDate |
2019 |
| dc.date.none.fl_str_mv |
2019 2019-03-25 2019 2019-01-01 2019 2019-01-01 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/10171/56656 |
| url |
https://hdl.handle.net/10171/56656 |
| dc.language.none.fl_str_mv |
Inglés eng |
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Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
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info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 |
| eu_rights_str_mv |
openAccess |
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application/pdf |
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reponame:Dadun. Depósito Académico Digital de la Universidad de Navarra instname:Universidad de Navarra |
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Universidad de Navarra |
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Dadun. Depósito Académico Digital de la Universidad de Navarra |
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Dadun. Depósito Académico Digital de la Universidad de Navarra |
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15.301629 |