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dc.contributor.authorMoreno, Elvira
dc.contributor.authorCervera Ruiz, Miguel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.identifier.citationMoreno, E., Cervera, M. Elementos finitos mixtos estabilizados para flujos confinados de Bingham y de Herschel-Bulkley. Parte I: Formulación. "Revista internacional de métodos numéricos para cálculo y diseño en ingeniería", Abril 2016, vol. 32, núm. 2, p. 100-109.
dc.description.abstractThis work presents a methodology for the solution of the Navier-Stokes equations for Bingham and Herschel-Bulkley viscoplastic fluids using stabilized mixed velocity/pressure finite elements. The theoretical formulation is developed and implemented in a computer code.; Viscoplastic fluids are characterized by a minimum shear stress called yield stress. Above this yield stress, the fluid is able to flow. Below this yield stress, the fluid behaves as a quasi-rigid body, with zero strain-rate.; First, the Navier-Stokes equations for incompressible fluid are presented. A review of the viscoplastic rheological models is included, with a detailed description of these models. The regularized viscoplastic models due to Papanastasiou are described. Double viscosity regularized models are proposed as an alternative to the models commonly used.; The discrete model is developed, and the Algebraic SubGrid Scale (ASGS) stabilization method, the Orthogonal Subgrid Scale (OSS) method and the split orthogonal subscales method are introduced.; The methodology proposed in this work provides a computational tool to study confined viscoplastic flows, common in industry.
dc.format.extent10 p.
dc.subjectÀrees temàtiques de la UPC::Física::Física de fluids::Flux de fluids
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits
dc.subject.lcshFluids--Mathematical models
dc.subject.otherStabilized finite elements
dc.subject.otherOrthogonal sub-grid scales OSS
dc.subject.otherViscoplastic fluid
dc.subject.otherBingham model
dc.subject.otherHerschel-Bulkley model
dc.titleElementos finitos mixtos estabilizados para flujos confinados de Bingham y de Herschel-Bulkley. Parte I: Formulación
dc.subject.lemacFluids -- Models matemàtics
dc.contributor.groupUniversitat Politècnica de Catalunya. RMEE - Grup de Resistència de Materials i Estructures a l'Enginyeria
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
upcommons.citation.authorMoreno, E., Cervera, M.
upcommons.citation.publicationNameRevista internacional de métodos numéricos para cálculo y diseño en ingeniería
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