Mostrar registro simples

dc.contributor.authorPetry, Adriane Priscopt_BR
dc.contributor.authorAwruch, Armando Miguelpt_BR
dc.date.accessioned2013-07-11T02:22:08Zpt_BR
dc.date.issued2006pt_BR
dc.identifier.issn1806-3691pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/75789pt_BR
dc.description.abstractThe main objectives of this work are the formulation, implementation and applications of a numerical algorithm to simulate turbulent, incompressible, isothermal flows. The transient three-dimensional flow is analyzed using an explicit Taylor-Galerkin scheme and the finite element method with hexahedrical eight-node element. Turbulence is simulated using Large Eddy Simulation. For sub-grid scales two models were implemented, the classical Smagorinsky´s model and the dynamic eddy viscosity model. For the second filtration, which is necessary in the dynamic model, a new method was developed based on independent finite elements that involve each node in the original mesh. The implemented scheme is efficient and good results with low additional computational cost were obtained. Results for two classical problems, the driven cavity and the backward facing step are presented. Comments about the model applicability for flows with high Reynolds numbers are also 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. 28, no. 2 (Apr./Jun. 2006), p. 224-232pt_BR
dc.rightsOpen Accessen
dc.subjectEscoamento turbulentopt_BR
dc.subjectTurbulenceen
dc.subjectElementos finitospt_BR
dc.subjectLarge Eddy simulationen
dc.subjectDynamic modelen
dc.subjectMecânica dos fluidospt_BR
dc.subjectFinite element methoden
dc.subjectComputational fluid dynamicsen
dc.titleLarge eddy simulation of three-dimensional turbulent flows by the finite element methodpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000552744pt_BR
dc.type.originNacionalpt_BR


Thumbnail
   

Este item está licenciado na Creative Commons License

Mostrar registro simples