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dc.contributor.authorBono, Gustavopt_BR
dc.contributor.authorAwruch, Armando Miguelpt_BR
dc.date.accessioned2013-07-11T02:22:23Zpt_BR
dc.date.issued2008pt_BR
dc.identifier.issn1806-3691pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/75803pt_BR
dc.description.abstractAn adaptive mesh strategy based on nodal re-allocation is presented in this work. This technique is applied to problems involving compressible flows with strong shocks waves, improving the accuracy and efficiency of the numerical solution. The initial mesh is continuously adapted during the solution process keeping, as much as possible, mesh smoothness and local orthogonality using an unconstrained nonlinear optimization method. The adaptive procedure, which is coupled to an edge-based error estimate aiming to equidistribute the error over the cell edges is the main contribution of this work. The flow is simulated using the Finite Element Method (FEM) with an explicit one-step Taylor- Galerkin scheme, in which an Arbitrary Lagrangean-Eulerian (ALE) description is employed to take into account mesh movement. Finally, to demonstrate the capabilities of the adaptive process, several examples of compressible inviscid flows are presented.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofJournal of the Brazilian Society of Mechanical Sciences and Engineering. Rio de Janeiro, RJ. Vol. 30, no. 3 (July/Sept. 2008), p. 189-196pt_BR
dc.rightsOpen Accessen
dc.subjectAdaptive mesh strategyen
dc.subjectElementos finitospt_BR
dc.subjectFluidos compressíveispt_BR
dc.subjectHigh compressible flowsen
dc.subjectFinite element methoden
dc.subjectEscoamento compressívelpt_BR
dc.titleAn adaptive mesh strategy for high compressible flows based on nodal re-allocationpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000679253pt_BR
dc.type.originNacionalpt_BR


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