Self-similarity of pressure profiles during forced granular flows
- Autores
- Ferreyra, María Victoria; Pugnaloni, Luis Ariel; Maza, Diego
- Año de publicación
- 2024
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We present measurements of the vertical stress profile σ on the base of flat-bottomed cylindrical silos discharged through an orifice centered on its base. An overweight forces the material on top of the free surface. The mean bottom pressure σ(z,D,W), with z the height of the granular column, D the silo diameter, and W the mass of the overweight, increases significantly at the end of the discharge. Inspired by early models of stress distribution, we show that σ measured at z=0 can be rescaled to yield a collapse of the data, as a function of z/D, for all D and W explored. We also show that the profile σ(r) is self-similar as a function of the radial coordinate r and can be rescaled to collapse the data for different z,D, and W. Although the model correctly predicts the functional dependences, it fails in quantitative terms. These results challenge our understanding of free and forced granular flows through orifices.
Fil: Ferreyra, María Victoria. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Pugnaloni, Luis Ariel. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentina
Fil: Maza, Diego. Universidad de Navarra; España - Materia
- Forced Granular Flow
- Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/230893
Ver los metadatos del registro completo
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Self-similarity of pressure profiles during forced granular flowsFerreyra, María VictoriaPugnaloni, Luis ArielMaza, DiegoForced Granular Flowhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present measurements of the vertical stress profile σ on the base of flat-bottomed cylindrical silos discharged through an orifice centered on its base. An overweight forces the material on top of the free surface. The mean bottom pressure σ(z,D,W), with z the height of the granular column, D the silo diameter, and W the mass of the overweight, increases significantly at the end of the discharge. Inspired by early models of stress distribution, we show that σ measured at z=0 can be rescaled to yield a collapse of the data, as a function of z/D, for all D and W explored. We also show that the profile σ(r) is self-similar as a function of the radial coordinate r and can be rescaled to collapse the data for different z,D, and W. Although the model correctly predicts the functional dependences, it fails in quantitative terms. These results challenge our understanding of free and forced granular flows through orifices.Fil: Ferreyra, María Victoria. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaFil: Pugnaloni, Luis Ariel. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; ArgentinaFil: Maza, Diego. Universidad de Navarra; EspañaAmerican Physical Society2024-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/230893Ferreyra, María Victoria; Pugnaloni, Luis Ariel; Maza, Diego; Self-similarity of pressure profiles during forced granular flows; American Physical Society; Physical Review E; 109; 1; 1-2024; 1-42470-00452470-0053CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevE.109.L012901info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevE.109.L012901info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:27:28Zoai:ri.conicet.gov.ar:11336/230893instacron: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:34982025-10-15 14:27:28.977CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Self-similarity of pressure profiles during forced granular flows |
| title |
Self-similarity of pressure profiles during forced granular flows |
| spellingShingle |
Self-similarity of pressure profiles during forced granular flows Ferreyra, María Victoria Forced Granular Flow |
| title_short |
Self-similarity of pressure profiles during forced granular flows |
| title_full |
Self-similarity of pressure profiles during forced granular flows |
| title_fullStr |
Self-similarity of pressure profiles during forced granular flows |
| title_full_unstemmed |
Self-similarity of pressure profiles during forced granular flows |
| title_sort |
Self-similarity of pressure profiles during forced granular flows |
| dc.creator.none.fl_str_mv |
Ferreyra, María Victoria Pugnaloni, Luis Ariel Maza, Diego |
| author |
Ferreyra, María Victoria |
| author_facet |
Ferreyra, María Victoria Pugnaloni, Luis Ariel Maza, Diego |
| author_role |
author |
| author2 |
Pugnaloni, Luis Ariel Maza, Diego |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
Forced Granular Flow |
| topic |
Forced Granular Flow |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
We present measurements of the vertical stress profile σ on the base of flat-bottomed cylindrical silos discharged through an orifice centered on its base. An overweight forces the material on top of the free surface. The mean bottom pressure σ(z,D,W), with z the height of the granular column, D the silo diameter, and W the mass of the overweight, increases significantly at the end of the discharge. Inspired by early models of stress distribution, we show that σ measured at z=0 can be rescaled to yield a collapse of the data, as a function of z/D, for all D and W explored. We also show that the profile σ(r) is self-similar as a function of the radial coordinate r and can be rescaled to collapse the data for different z,D, and W. Although the model correctly predicts the functional dependences, it fails in quantitative terms. These results challenge our understanding of free and forced granular flows through orifices. Fil: Ferreyra, María Victoria. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina Fil: Pugnaloni, Luis Ariel. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentina Fil: Maza, Diego. Universidad de Navarra; España |
| description |
We present measurements of the vertical stress profile σ on the base of flat-bottomed cylindrical silos discharged through an orifice centered on its base. An overweight forces the material on top of the free surface. The mean bottom pressure σ(z,D,W), with z the height of the granular column, D the silo diameter, and W the mass of the overweight, increases significantly at the end of the discharge. Inspired by early models of stress distribution, we show that σ measured at z=0 can be rescaled to yield a collapse of the data, as a function of z/D, for all D and W explored. We also show that the profile σ(r) is self-similar as a function of the radial coordinate r and can be rescaled to collapse the data for different z,D, and W. Although the model correctly predicts the functional dependences, it fails in quantitative terms. These results challenge our understanding of free and forced granular flows through orifices. |
| publishDate |
2024 |
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2024-01 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://hdl.handle.net/11336/230893 Ferreyra, María Victoria; Pugnaloni, Luis Ariel; Maza, Diego; Self-similarity of pressure profiles during forced granular flows; American Physical Society; Physical Review E; 109; 1; 1-2024; 1-4 2470-0045 2470-0053 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/230893 |
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Ferreyra, María Victoria; Pugnaloni, Luis Ariel; Maza, Diego; Self-similarity of pressure profiles during forced granular flows; American Physical Society; Physical Review E; 109; 1; 1-2024; 1-4 2470-0045 2470-0053 CONICET Digital CONICET |
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eng |
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eng |
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