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https://hdl.handle.net/10216/87338
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DC Field | Value | Language |
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dc.creator | M. A. Alves | |
dc.creator | P. J. Oliveira | |
dc.creator | F. T. Pinho | |
dc.date.accessioned | 2022-09-10T06:37:15Z | - |
dc.date.available | 2022-09-10T06:37:15Z | - |
dc.date.issued | 2003 | |
dc.identifier.other | sigarra:66256 | |
dc.identifier.uri | https://hdl.handle.net/10216/87338 | - |
dc.description.abstract | In this work we present numerical results obtained with a finite volume method for the creeping flow of viscoelastic fluids in both axisymmetric and planar 4: 1 contractions. Two theological equations are considered, namely the constant-viscosity Oldroyd-B and the shear-thinning Phan-Thien/Tanner (PTT) models. Accurate solutions are presented over a wide range of the Deborah number (a measure of the elasticity of the flow) extending the attainable values of previous studies [1]. Vortex enhancement was observed for the axisymmetric contraction, with both theological models, while for the planar contraction vortex enhancement is only observed for the shear-thinning PTT model. In the latter geometry, vortex reduction and the appearance of a small lip vortex is predicted for the constant-viscosity Oldroyd-B fluid. | |
dc.language.iso | eng | |
dc.relation.ispartof | COMPUTATIONAL FLUID AND SOLID MECHANICS 2003, VOLS 1 AND 2, PROCEEDINGS | |
dc.rights | restrictedAccess | |
dc.subject | Engenharia mecânica | |
dc.subject | Mechanical engineering | |
dc.title | Numerical simulation of viscoelastic contraction flows | |
dc.type | Artigo em Livro de Atas de Conferência Internacional | |
dc.contributor.uporto | Faculdade de Engenharia | |
dc.identifier.doi | 10.1016/b978-008044046-0.50201-3 | |
dc.identifier.authenticus | P-000-JC1 | |
dc.subject.fos | Ciências da engenharia e tecnologias::Engenharia mecânica | |
dc.subject.fos | Engineering and technology::Mechanical engineering | |
Appears in Collections: | FEUP - Artigo em Livro de Atas de Conferência Internacional |
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File | Description | Size | Format | |
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66256.pdf Restricted Access | 708.71 kB | Adobe PDF | Request a copy from the Author(s) |
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