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Elementos finitos mixtos estabilizados para flujos confinados de Bingham y de Herschel-Bulkley. Parte I: Formulación
dc.contributor.author | Moreno, Elvira |
dc.contributor.author | Cervera Ruiz, Miguel |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental |
dc.date.accessioned | 2016-06-01T14:33:53Z |
dc.date.available | 2016-06-01T14:33:53Z |
dc.date.issued | 2016-04 |
dc.identifier.citation | Moreno, 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.identifier.issn | 0213-1315 |
dc.identifier.issn | 1886-158X |
dc.identifier.uri | http://hdl.handle.net/2117/87613 |
dc.description.abstract | This 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.extent | 10 p. |
dc.language.iso | spa |
dc.publisher | Universitat Politècnica de Catalunya. CIMNE |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Física::Física de fluids::Flux de fluids |
dc.subject | Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits |
dc.subject.lcsh | Fluids--Mathematical models |
dc.subject.other | Stabilized finite elements |
dc.subject.other | Orthogonal sub-grid scales OSS |
dc.subject.other | Incompressibility |
dc.subject.other | Viscoplastic fluid |
dc.subject.other | Bingham model |
dc.subject.other | Herschel-Bulkley model |
dc.title | Elementos finitos mixtos estabilizados para flujos confinados de Bingham y de Herschel-Bulkley. Parte I: Formulación |
dc.type | Article |
dc.subject.lemac | Fluids -- Models matemàtics |
dc.contributor.group | Universitat Politècnica de Catalunya. RMEE - Grup de Resistència de Materials i Estructures en l'Enginyeria |
dc.identifier.doi | 10.1016/j.rimni.2015.02.004 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S021313151500022X |
dc.rights.access | Open Access |
local.identifier.drac | 18544299 |
dc.description.version | Postprint (published version) |
local.citation.author | Moreno, E.; Cervera, M. |
local.citation.publicationName | Revista internacional de métodos numéricos para cálculo y diseño en ingeniería |
local.citation.volume | 32 |
local.citation.number | 2 |
local.citation.startingPage | 100 |
local.citation.endingPage | 109 |
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