Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/91421
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dc.creatorMónica S. Neves Oliveira
dc.creatorManuel A. Alves
dc.creatorGareth H. McKinley
dc.creatorFernando T. Pinho
dc.date.accessioned2019-02-01T11:18:48Z-
dc.date.available2019-02-01T11:18:48Z-
dc.date.issued2006
dc.identifier.othersigarra:61554
dc.identifier.urihttps://repositorio-aberto.up.pt/handle/10216/91421-
dc.description.abstractExperiments and numerical simulations are used to investigate the extensionalflow through a 3-D planar hyperbolic micro-contraction. A converging geometry with aHencky strain of two was designed to produce a constant extensional rate along thecenterline. This configuration was used for the examination of Newtonian flows at low tomoderate Reynolds numbers and viscoelastic flows at low Deborah numbers. Numericalsimulations of the flow in the micro-contractions were obtained from a finite-volumemethod using non-orthogonal block-structured collocated meshes. The numerical resultsare compared to experimental measurements. For the base case of Newtonian flow, thenumerical predictions show good agreement with experiments. We also report preliminaryresults for a semi-dilute solution of polyethylene oxide.
dc.language.isoeng
dc.relation.ispartofACTA DA CONFERÊNCIA NACIONAL DE MÉTODOS NUMÉRICOS EM MECÂNICA DOS FLUIDOS E TERMODINÂMICA 2006
dc.rightsrestrictedAccess
dc.titleExtensional flow through microfabricated hyperbolic contractions
dc.typeArtigo em Livro de Atas de Conferência Nacional
dc.contributor.uportoFaculdade de Engenharia
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Nacional

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