Hygroscopic equilibrium time dependence of stability characteristic angles in granular media

Autores
Gomez Arriaran, I.; Roht, Yanina Lucrecia; Odriozola Maritorena, M.; Binda, Leonardo David; Oger, L.; Ippolito, Irene Paula
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The characteristic angles of the granular media depend on such grain parameters as size, geometry and roughness, as well as the degree of packing fraction or compactivity, and the relative humidity within the medium. In this work, we study the relationship between the characteristic angles and time during which the granular medium is stored in a humidity controlled environment, for grains of different geometry.The characteristic angles were experimentally measured for successive avalanches of grain packings with spherical and irregular geometries under conditions of varying relative humidity (75 % - 84 % - 94 %). It was found that, for each grain geometry and determined relative humidity, there is a time at which the angle of maximum stability becomes constant. This time will be referred to as the “characteristic stability time” or “hygroscopic equilibrium time” (th), which is governed by the moisture diffusivity within the granular packing.It is shown that, for the same grain geometry, the angle of repose is independent of the characteristic time and therefore of the relative humidity. It was found that, for irregular geometry grains, the angle of maximum stability increases with higher relative humidities (showing an increase of 7° from 75 % to 94 % relative humidity). For spherical beads, the angle of maximum stability remains smaller than that of irregular ones, from 75 % to 84 % relative humidity. However, at very high relative humidity (94 %), it increases abruptly in comparison to irregular grains, indicating that the cohesive forces between grains is smaller for irregular grains than for spherical grains.
Fil: Gomez Arriaran, I.. Universidad del País Vasco; España
Fil: Roht, Yanina Lucrecia. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Odriozola Maritorena, M.. Universidad del País Vasco; España
Fil: Binda, Leonardo David. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
Fil: Oger, L.. Universite de Rennes I; Francia
Fil: Ippolito, Irene Paula. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Maximum stability angle
Relative humidity
Angle of repose
Granular medium
Hygroscopic equilibrium time
Nivel de accesibilidad
acceso embargado
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/264724
Acceder
id CONICETDig_c9e9bae37905be0032f7776c7cba798f
oai_identifier_str oai:ri.conicet.gov.ar:11336/264724
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Hygroscopic equilibrium time dependence of stability characteristic angles in granular mediaGomez Arriaran, I.Roht, Yanina LucreciaOdriozola Maritorena, M.Binda, Leonardo DavidOger, L.Ippolito, Irene PaulaMaximum stability angleRelative humidityAngle of reposeGranular mediumHygroscopic equilibrium timehttps://purl.org/becyt/ford/2.1https://purl.org/becyt/ford/2The characteristic angles of the granular media depend on such grain parameters as size, geometry and roughness, as well as the degree of packing fraction or compactivity, and the relative humidity within the medium. In this work, we study the relationship between the characteristic angles and time during which the granular medium is stored in a humidity controlled environment, for grains of different geometry.The characteristic angles were experimentally measured for successive avalanches of grain packings with spherical and irregular geometries under conditions of varying relative humidity (75 % - 84 % - 94 %). It was found that, for each grain geometry and determined relative humidity, there is a time at which the angle of maximum stability becomes constant. This time will be referred to as the “characteristic stability time” or “hygroscopic equilibrium time” (th), which is governed by the moisture diffusivity within the granular packing.It is shown that, for the same grain geometry, the angle of repose is independent of the characteristic time and therefore of the relative humidity. It was found that, for irregular geometry grains, the angle of maximum stability increases with higher relative humidities (showing an increase of 7° from 75 % to 94 % relative humidity). For spherical beads, the angle of maximum stability remains smaller than that of irregular ones, from 75 % to 84 % relative humidity. However, at very high relative humidity (94 %), it increases abruptly in comparison to irregular grains, indicating that the cohesive forces between grains is smaller for irregular grains than for spherical grains.Fil: Gomez Arriaran, I.. Universidad del País Vasco; EspañaFil: Roht, Yanina Lucrecia. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Odriozola Maritorena, M.. Universidad del País Vasco; EspañaFil: Binda, Leonardo David. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; ArgentinaFil: Oger, L.. Universite de Rennes I; FranciaFil: Ippolito, Irene Paula. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier Science SA2025-06info:eu-repo/date/embargoEnd/2025-12-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/264724Gomez Arriaran, I.; Roht, Yanina Lucrecia; Odriozola Maritorena, M.; Binda, Leonardo David; Oger, L.; et al.; Hygroscopic equilibrium time dependence of stability characteristic angles in granular media; Elsevier Science SA; Powder Technology; 464; 6-2025; 1-320032-5910CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0032591025006631info:eu-repo/semantics/altIdentifier/doi/10.1016/j.powtec.2025.121268info:eu-repo/semantics/embargoedAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:33:55Zoai:ri.conicet.gov.ar:11336/264724instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:33:56.002CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Hygroscopic equilibrium time dependence of stability characteristic angles in granular media
title Hygroscopic equilibrium time dependence of stability characteristic angles in granular media
spellingShingle Hygroscopic equilibrium time dependence of stability characteristic angles in granular media
Gomez Arriaran, I.
Maximum stability angle
Relative humidity
Angle of repose
Granular medium
Hygroscopic equilibrium time
title_short Hygroscopic equilibrium time dependence of stability characteristic angles in granular media
title_full Hygroscopic equilibrium time dependence of stability characteristic angles in granular media
title_fullStr Hygroscopic equilibrium time dependence of stability characteristic angles in granular media
title_full_unstemmed Hygroscopic equilibrium time dependence of stability characteristic angles in granular media
title_sort Hygroscopic equilibrium time dependence of stability characteristic angles in granular media
dc.creator.none.fl_str_mv Gomez Arriaran, I.
Roht, Yanina Lucrecia
Odriozola Maritorena, M.
Binda, Leonardo David
Oger, L.
Ippolito, Irene Paula
author Gomez Arriaran, I.
author_facet Gomez Arriaran, I.
Roht, Yanina Lucrecia
Odriozola Maritorena, M.
Binda, Leonardo David
Oger, L.
Ippolito, Irene Paula
author_role author
author2 Roht, Yanina Lucrecia
Odriozola Maritorena, M.
Binda, Leonardo David
Oger, L.
Ippolito, Irene Paula
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Maximum stability angle
Relative humidity
Angle of repose
Granular medium
Hygroscopic equilibrium time
topic Maximum stability angle
Relative humidity
Angle of repose
Granular medium
Hygroscopic equilibrium time
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.1
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The characteristic angles of the granular media depend on such grain parameters as size, geometry and roughness, as well as the degree of packing fraction or compactivity, and the relative humidity within the medium. In this work, we study the relationship between the characteristic angles and time during which the granular medium is stored in a humidity controlled environment, for grains of different geometry.The characteristic angles were experimentally measured for successive avalanches of grain packings with spherical and irregular geometries under conditions of varying relative humidity (75 % - 84 % - 94 %). It was found that, for each grain geometry and determined relative humidity, there is a time at which the angle of maximum stability becomes constant. This time will be referred to as the “characteristic stability time” or “hygroscopic equilibrium time” (th), which is governed by the moisture diffusivity within the granular packing.It is shown that, for the same grain geometry, the angle of repose is independent of the characteristic time and therefore of the relative humidity. It was found that, for irregular geometry grains, the angle of maximum stability increases with higher relative humidities (showing an increase of 7° from 75 % to 94 % relative humidity). For spherical beads, the angle of maximum stability remains smaller than that of irregular ones, from 75 % to 84 % relative humidity. However, at very high relative humidity (94 %), it increases abruptly in comparison to irregular grains, indicating that the cohesive forces between grains is smaller for irregular grains than for spherical grains.
Fil: Gomez Arriaran, I.. Universidad del País Vasco; España
Fil: Roht, Yanina Lucrecia. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Odriozola Maritorena, M.. Universidad del País Vasco; España
Fil: Binda, Leonardo David. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
Fil: Oger, L.. Universite de Rennes I; Francia
Fil: Ippolito, Irene Paula. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description The characteristic angles of the granular media depend on such grain parameters as size, geometry and roughness, as well as the degree of packing fraction or compactivity, and the relative humidity within the medium. In this work, we study the relationship between the characteristic angles and time during which the granular medium is stored in a humidity controlled environment, for grains of different geometry.The characteristic angles were experimentally measured for successive avalanches of grain packings with spherical and irregular geometries under conditions of varying relative humidity (75 % - 84 % - 94 %). It was found that, for each grain geometry and determined relative humidity, there is a time at which the angle of maximum stability becomes constant. This time will be referred to as the “characteristic stability time” or “hygroscopic equilibrium time” (th), which is governed by the moisture diffusivity within the granular packing.It is shown that, for the same grain geometry, the angle of repose is independent of the characteristic time and therefore of the relative humidity. It was found that, for irregular geometry grains, the angle of maximum stability increases with higher relative humidities (showing an increase of 7° from 75 % to 94 % relative humidity). For spherical beads, the angle of maximum stability remains smaller than that of irregular ones, from 75 % to 84 % relative humidity. However, at very high relative humidity (94 %), it increases abruptly in comparison to irregular grains, indicating that the cohesive forces between grains is smaller for irregular grains than for spherical grains.
publishDate 2025
dc.date.none.fl_str_mv 2025-06
info:eu-repo/date/embargoEnd/2025-12-30
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/264724
Gomez Arriaran, I.; Roht, Yanina Lucrecia; Odriozola Maritorena, M.; Binda, Leonardo David; Oger, L.; et al.; Hygroscopic equilibrium time dependence of stability characteristic angles in granular media; Elsevier Science SA; Powder Technology; 464; 6-2025; 1-32
0032-5910
CONICET Digital
CONICET
url http://hdl.handle.net/11336/264724
identifier_str_mv Gomez Arriaran, I.; Roht, Yanina Lucrecia; Odriozola Maritorena, M.; Binda, Leonardo David; Oger, L.; et al.; Hygroscopic equilibrium time dependence of stability characteristic angles in granular media; Elsevier Science SA; Powder Technology; 464; 6-2025; 1-32
0032-5910
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0032591025006631
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.powtec.2025.121268
dc.rights.none.fl_str_mv info:eu-repo/semantics/embargoedAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv embargoedAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science SA
publisher.none.fl_str_mv Elsevier Science SA
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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