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dc.contributor.author
Ferreyra, María Victoria
dc.contributor.author
Pugnaloni, Luis Ariel
dc.contributor.author
Maza, Diego
dc.date.available
2024-03-19T12:33:48Z
dc.date.issued
2024-01
dc.identifier.citation
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
dc.identifier.issn
2470-0045
dc.identifier.uri
http://hdl.handle.net/11336/230893
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Forced Granular Flow
dc.subject.classification
Física de los Fluidos y Plasma
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Self-similarity of pressure profiles during forced granular flows
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-03-19T10:28:12Z
dc.identifier.eissn
2470-0053
dc.journal.volume
109
dc.journal.number
1
dc.journal.pagination
1-4
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Ferreyra, María Victoria. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
dc.description.fil
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
dc.description.fil
Fil: Maza, Diego. Universidad de Navarra; España
dc.journal.title
Physical Review E
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevE.109.L012901
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevE.109.L012901
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