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Microscopic foundation of the $\mu$(I) rheology for dense granular flows on inclined planes.

dc.contributor.authorDUMONT, Denis
hal.structure.identifierGulliver (UMR 7083)
dc.contributor.authorBONNEAU, Haggai
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorSALEZ, Thomas
hal.structure.identifierGulliver (UMR 7083)
dc.contributor.authorRAPHAËL, Elie
dc.contributor.authorDAMMAN, Pascal
dc.date.issued2023
dc.identifier.issn2643-1564
dc.description.abstractEnMacroscopic and microscopic properties of dense granular layers flowing down inclined planes are obtained from Discrete-Element-Method simulations for both frictionless and frictional grains. Three fundamental observations for dense granular flows are recovered, namely the occurrence of a critical stress, the Bagnold velocity profile, as well as well-defined friction and dilatancy laws. The microscopic aspects of the grain motion highlight the formation of transient clusters. From this microscopic picture, we derive a theoretical scaling model without any empirical input that explains quantitatively the fundamental laws of dense granular flows in incline plane and shear geometries. The adequacy between the model and the observed results suggests that granular flows can be viewed as flows from thermal fluids of hard spheres.
dc.description.sponsorshipMouvement brownien au voisinage d'interfaces molles - ANR-21-ERCC-0010
dc.description.sponsorshipCapteur Interférométrique de Contraintes de Surface - ANR-21-CE06-0029
dc.description.sponsorshipFrottements dans les systèmes complexes - ANR-21-CE06-0039
dc.language.isoen
dc.publisherAmerican Physical Society
dc.title.enMicroscopic foundation of the $\mu$(I) rheology for dense granular flows on inclined planes.
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevResearch.5.013089
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Mécanique statistique [cond-mat.stat-mech]
dc.subject.halPhysique [physics]/Mécanique [physics]/Mécanique des matériaux [physics.class-ph]
dc.subject.halPhysique [physics]/Mécanique [physics]/Mécanique des solides [physics.class-ph]
dc.subject.halPhysique [physics]/Physique [physics]/Dynamique des Fluides [physics.flu-dyn]
dc.identifier.arxiv2206.11633
bordeaux.journalPhysical Review Research
bordeaux.page013089
bordeaux.volume5
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-03696161
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03696161v1
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