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Modélisation numérique de l'interaction d'un écoulement de fluide viscoplastique avec un obstacle rigide par la méthode SPH : Application aux laves torrentielles

Author: Mathieu LabbéDominique LaiglePierre SaramitoChantal StaquetLuc OgerAll authors
Publisher: 2015.
Dissertation: Thèse de doctorat : Sciences de la terre et de l'univers, et de l'environnement : Université Grenoble Alpes (ComUE) : 2015.
Edition/Format:   Computer file : Document : Thesis/dissertation : French
Summary:
Dans le présent travail, nous étudions l'impact sur un obstacle rigide d'un écoulement transitoire à surface libre de fluide viscoplastique. Cette étude est conduite numériquement à l'aide de la méthode SPH (Smoothed Particle Hydrodynamics), en y intégrant le modèle rhéologique de Herschel-Bulkley. Le code employé est adapté à nos besoins et validé sur des cas test classiques. Les caractéristiques
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Genre/Form: Thèses et écrits académiques
Material Type: Document, Thesis/dissertation, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: Mathieu Labbé; Dominique Laigle; Pierre Saramito; Chantal Staquet; Luc Oger; Hélène Hébert; Jean-Paul Vila; Communauté d'universités et d'établissements Université Grenoble Alpes.; École doctorale terre, univers, environnement (Grenoble).
OCLC Number: 908239092
Notes: Titre provenant de l'écran-titre.
Description: 1 online resource
Responsibility: Mathieu Labbé ; sous la direction de Dominique Laigle et de Pierre Saramito.

Abstract:

Dans le présent travail, nous étudions l'impact sur un obstacle rigide d'un écoulement transitoire à surface libre de fluide viscoplastique. Cette étude est conduite numériquement à l'aide de la méthode SPH (Smoothed Particle Hydrodynamics), en y intégrant le modèle rhéologique de Herschel-Bulkley. Le code employé est adapté à nos besoins et validé sur des cas test classiques. Les caractéristiques locales de l'écoulement à proximité de l'obstacle sont analysées et deux régimes d'impact sont mis en évidence en fonction de la pente d'écoulement. L'étude des pressions exercées sur l'obstacle, conduite spatialement et temporellement en fonction de ces régimes d'impact, nous permet de mettre en évidence les rôles respectifs des composantes gravitationnelle et cinétique de la pression. Nos résultats sont comparés systématiquement à des résultats expérimentaux issus de travaux précédents et sont cohérents avec ces derniers. Une étude comparative de nos écoulements de fluide viscoplastique avec des écoulements de matériau granulaires de propriétés similaires nous conduit à mettre en évidence des caractéristiques communes entre les deux matériaux.

In this work, we study the impact of a transient free-surface flow of viscoplastic fluid on a rigid obstacle. This study is conducted numerically using the SPH (Smoothed Particle Hydrodynamics) method, and the Herschel-Bulkley rheological model. The SPH code is adapted to our needs and validated on classic benchmarks. The local characteristics of the flow near the obstacle are analysed and two impact regimes are highlighted depending on the slope angle. By studying of the pressure exerted on the obstacle, both spatially and temporally, with regards to these impact regimes, we evidence the respective roles of the gravitational and kinetic components of the pressure. Our results are systematically compared with experimental data from a previous work and are shown to be consistent. A comparative study conducted on both our viscoplastic flows and flows of granular material of similar properties highlights common characteristics of the two materials.

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<http:\/\/www.worldcat.org\/oclc\/908239092<\/a>> # Mod\u00E9lisation num\u00E9rique de l\'interaction d\'un \u00E9coulement de fluide viscoplastique avec un obstacle rigide par la m\u00E9thode SPH : Application aux laves torrentielles<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nbgn:ComputerFile<\/a>, bgn:Thesis<\/a>, schema:MediaObject<\/a>, schema:CreativeWork<\/a> ;\u00A0\u00A0\u00A0\nbgn:inSupportOf<\/a> \"Th\u00E8se de doctorat : Sciences de la terre et de l\'univers, et de l\'environnement : Universit\u00E9 Grenoble Alpes (ComUE) : 2015.<\/span>\" ;\u00A0\u00A0\u00A0\nlibrary:oclcnum<\/a> \"908239092<\/span>\" ;\u00A0\u00A0\u00A0\nlibrary:placeOfPublication<\/a> <http:\/\/id.loc.gov\/vocabulary\/countries\/fr<\/a>> ;\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Thing\/ecoulement_granulaire<\/a>> ; # \u00C9coulement granulaire<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Thing\/lave_torrentielle<\/a>> ; # Lave torrentielle<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Thing\/structure_de_protection<\/a>> ; # Structure de protection<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Thing\/fluide_viscoplastique<\/a>> ; # Fluide viscoplastique<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Thing\/sph<\/a>> ; # SPH<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Thing\/simulation_numerique<\/a>> ; # Simulation num\u00E9rique<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/dewey.info\/class\/550\/<\/a>> ;\u00A0\u00A0\u00A0\nschema:author<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Person\/labbe_mathieu_1986<\/a>> ; # Mathieu Labb\u00E9<\/span>\n\u00A0\u00A0\u00A0\nschema:contributor<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Person\/saramito_pierre<\/a>> ; # Pierre Saramito<\/span>\n\u00A0\u00A0\u00A0\nschema:contributor<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Organization\/ecole_doctorale_terre_univers_environnement_grenoble<\/a>> ; # \u00C9cole doctorale terre, univers, environnement (Grenoble).<\/span>\n\u00A0\u00A0\u00A0\nschema:contributor<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Person\/oger_luc_1959<\/a>> ; # Luc Oger<\/span>\n\u00A0\u00A0\u00A0\nschema:contributor<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Person\/hebert_helene<\/a>> ; # H\u00E9l\u00E8ne H\u00E9bert<\/span>\n\u00A0\u00A0\u00A0\nschema:contributor<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Person\/vila_jean_paul<\/a>> ; # Jean-Paul Vila<\/span>\n\u00A0\u00A0\u00A0\nschema:contributor<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Person\/laigle_dominique_1965<\/a>> ; # Dominique Laigle<\/span>\n\u00A0\u00A0\u00A0\nschema:contributor<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Organization\/communaute_d_universites_et_d_etablissements_universite_grenoble_alpes<\/a>> ; # Communaut\u00E9 d\'universit\u00E9s et d\'\u00E9tablissements Universit\u00E9 Grenoble Alpes.<\/span>\n\u00A0\u00A0\u00A0\nschema:contributor<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Person\/staquet_chantal_19<\/a>> ; # Chantal Staquet<\/span>\n\u00A0\u00A0\u00A0\nschema:datePublished<\/a> \"2015<\/span>\" ;\u00A0\u00A0\u00A0\nschema:description<\/a> \"In this work, we study the impact of a transient free-surface flow of viscoplastic fluid on a rigid obstacle. This study is conducted numerically using the SPH (Smoothed Particle Hydrodynamics) method, and the Herschel-Bulkley rheological model. The SPH code is adapted to our needs and validated on classic benchmarks. The local characteristics of the flow near the obstacle are analysed and two impact regimes are highlighted depending on the slope angle. By studying of the pressure exerted on the obstacle, both spatially and temporally, with regards to these impact regimes, we evidence the respective roles of the gravitational and kinetic components of the pressure. Our results are systematically compared with experimental data from a previous work and are shown to be consistent. 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L\'\u00E9tude des pressions exerc\u00E9es sur l\'obstacle, conduite spatialement et temporellement en fonction de ces r\u00E9gimes d\'impact, nous permet de mettre en \u00E9vidence les r\u00F4les respectifs des composantes gravitationnelle et cin\u00E9tique de la pression. Nos r\u00E9sultats sont compar\u00E9s syst\u00E9matiquement \u00E0 des r\u00E9sultats exp\u00E9rimentaux issus de travaux pr\u00E9c\u00E9dents et sont coh\u00E9rents avec ces derniers. 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<http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Person\/hebert_helene<\/a>> # H\u00E9l\u00E8ne H\u00E9bert<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Person<\/a> ;\u00A0\u00A0\u00A0\nschema:familyName<\/a> \"H\u00E9bert<\/span>\" ;\u00A0\u00A0\u00A0\nschema:givenName<\/a> \"H\u00E9l\u00E8ne<\/span>\" ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"H\u00E9l\u00E8ne H\u00E9bert<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Person\/labbe_mathieu_1986<\/a>> # Mathieu Labb\u00E9<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Person<\/a> ;\u00A0\u00A0\u00A0\nschema:birthDate<\/a> \"1986<\/span>\" ;\u00A0\u00A0\u00A0\nschema:deathDate<\/a> \"\" ;\u00A0\u00A0\u00A0\nschema:familyName<\/a> \"Labb\u00E9<\/span>\" ;\u00A0\u00A0\u00A0\nschema:givenName<\/a> \"Mathieu<\/span>\" ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"Mathieu Labb\u00E9<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Person\/laigle_dominique_1965<\/a>> # Dominique Laigle<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Person<\/a> ;\u00A0\u00A0\u00A0\nschema:birthDate<\/a> \"1965<\/span>\" ;\u00A0\u00A0\u00A0\nschema:deathDate<\/a> \"\" ;\u00A0\u00A0\u00A0\nschema:familyName<\/a> \"Laigle<\/span>\" ;\u00A0\u00A0\u00A0\nschema:givenName<\/a> \"Dominique<\/span>\" ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"Dominique Laigle<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
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<http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Person\/saramito_pierre<\/a>> # Pierre Saramito<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Person<\/a> ;\u00A0\u00A0\u00A0\nschema:familyName<\/a> \"Saramito<\/span>\" ;\u00A0\u00A0\u00A0\nschema:givenName<\/a> \"Pierre<\/span>\" ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"Pierre Saramito<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Person\/staquet_chantal_19<\/a>> # Chantal Staquet<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Person<\/a> ;\u00A0\u00A0\u00A0\nschema:birthDate<\/a> \"19..<\/span>\" ;\u00A0\u00A0\u00A0\nschema:deathDate<\/a> \"\" ;\u00A0\u00A0\u00A0\nschema:familyName<\/a> \"Staquet<\/span>\" ;\u00A0\u00A0\u00A0\nschema:givenName<\/a> \"Chantal<\/span>\" ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"Chantal Staquet<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Person\/vila_jean_paul<\/a>> # Jean-Paul Vila<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Person<\/a> ;\u00A0\u00A0\u00A0\nschema:familyName<\/a> \"Vila<\/span>\" ;\u00A0\u00A0\u00A0\nschema:givenName<\/a> \"Jean-Paul<\/span>\" ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"Jean-Paul Vila<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
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<http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Thing\/fluide_viscoplastique<\/a>> # Fluide viscoplastique<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Thing<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"Fluide viscoplastique<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Thing\/lave_torrentielle<\/a>> # Lave torrentielle<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Thing<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"Lave torrentielle<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Thing\/simulation_numerique<\/a>> # Simulation num\u00E9rique<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Thing<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"Simulation num\u00E9rique<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/2510290952#Thing\/sph<\/a>> # SPH<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Thing<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"SPH<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
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<http:\/\/www.theses.fr\/2015GREAU001\/document<\/a>>\u00A0\u00A0\u00A0\nrdfs:comment<\/a> \"Acc\u00E8s au texte int\u00E9gral<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/www.worldcat.org\/title\/-\/oclc\/908239092<\/a>>\u00A0\u00A0\u00A0\u00A0a \ngenont:InformationResource<\/a>, genont:ContentTypeGenericResource<\/a> ;\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/www.worldcat.org\/oclc\/908239092<\/a>> ; # Mod\u00E9lisation num\u00E9rique de l\'interaction d\'un \u00E9coulement de fluide viscoplastique avec un obstacle rigide par la m\u00E9thode SPH : Application aux laves torrentielles<\/span>\n\u00A0\u00A0\u00A0\nschema:dateModified<\/a> \"2020-10-07<\/span>\" ;\u00A0\u00A0\u00A0\nvoid:inDataset<\/a> <http:\/\/purl.oclc.org\/dataset\/WorldCat<\/a>> ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n\n

Content-negotiable representations<\/p>\n