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dc.contributor.authorCasadei, Folco
dc.contributor.authorDíez, Pedro
dc.contributor.authorVerdugo Rojano, Francesc
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.date.accessioned2015-11-02T12:34:30Z
dc.date.available2015-11-02T12:34:30Z
dc.date.issued2013-08
dc.identifier.citationCasadei, F., Diez, P., Verdugo, F. An algorithm for mesh refinement and un-refinement in fast transient dynamics. "International journal of computational methods", Agost 2013, vol. 10, núm. 4, p. 1-31.
dc.identifier.issn0219-8762
dc.identifier.urihttp://hdl.handle.net/2117/78628
dc.description.abstractA procedure to locally refine and un-refine an unstructured computational grid of four-node quadrilaterals (in 2D) or of eight-node hexahedra (in 3D) is presented. The chosen refinement strategy generates only elements of the same type as their parents, but also produces so-called hanging nodes along nonconforming element-to-element interfaces. Continuity of the solution across such interfaces is enforced strongly by Lagrange multipliers. The element split and un-split algorithm is entirely integer-based. It relies only upon element connectivity and makes no use of nodal coordinates or other real-number quantities. The chosen data structure and the continuous tracking of the nature of each node facilitate the treatment of natural and essential boundary conditions in adaptivity. A generalization of the concept of neighbor elements allows transport calculations in adaptive fluid calculations. The proposed procedure is tested in structure and fluid wave propagation problems in explicit transient dynamics
dc.format.extent31 p.
dc.language.isoeng
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Investigació operativa::Programació matemàtica
dc.subject.lcshComputational mathematics and applications
dc.subject.other3D
dc.subject.otheradaptivity
dc.subject.otherexplicit
dc.subject.otherMesh refinement
dc.subject.othermesh un-refinement
dc.subject.othertransient dynamics
dc.titleAn algorithm for mesh refinement and un-refinement in fast transient dynamics
dc.typeArticle
dc.subject.lemacProgramació (Matemàtica)
dc.contributor.groupUniversitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria
dc.identifier.doi10.1142/S0219876213500187
dc.description.peerreviewedPeer Reviewed
dc.subject.amsClassificació AMS::68 Computer science::68W Algorithms
dc.rights.accessOpen Access
drac.iddocument12613069
dc.description.versionPostprint (author’s final draft)
upcommons.citation.authorCasadei, F.; Diez, P.; Verdugo, F.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameInternational journal of computational methods
upcommons.citation.volume10
upcommons.citation.number4
upcommons.citation.startingPage1
upcommons.citation.endingPage31


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