Numerical simulation of non-newtonian flows through ducts with axisymmetric expansions using power-law model

Detalhes bibliográficos
Autor(a) principal: Manica, Rogério
Data de Publicação: 2008
Outros Autores: Bortoli, Álvaro Luis de
Tipo de documento: Artigo
Título da fonte: Vetor (Online)
Texto Completo: https://periodicos.furg.br/vetor/article/view/676
Resumo: This work presents a method to simulate incompressible non-Newtonian flows through a duct with axisymmetric sudden expansion, with emphasis to the expansion ratios. The governing equations are solved using the finite-differences explicit Runge-Kutta time-stepping scheme in nondimensional form in which continuity and momentum are solved simultaneously along the grid points. The power-law model is applied to predict pseudoplastic and dilatant behavior. Numerical results for some expansions ratios are presented for Re=20 and show a good agreement with the theory for these flows. Palavras-Chave: Numerical simulation, axisymmetric abrupt expansion, non-Newtonian flow.
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spelling Numerical simulation of non-newtonian flows through ducts with axisymmetric expansions using power-law modelNumerical simulationaxisymmetric abrupt expansionnon-Newtonian flowThis work presents a method to simulate incompressible non-Newtonian flows through a duct with axisymmetric sudden expansion, with emphasis to the expansion ratios. The governing equations are solved using the finite-differences explicit Runge-Kutta time-stepping scheme in nondimensional form in which continuity and momentum are solved simultaneously along the grid points. The power-law model is applied to predict pseudoplastic and dilatant behavior. Numerical results for some expansions ratios are presented for Re=20 and show a good agreement with the theory for these flows. Palavras-Chave: Numerical simulation, axisymmetric abrupt expansion, non-Newtonian flow.Universidade Federal do Rio Grande2008-02-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://periodicos.furg.br/vetor/article/view/676VETOR - Journal of Exact Sciences and Engineering; Vol. 13 No. 2 (2003); 67-77VETOR - Revista de Ciências Exatas e Engenharias; v. 13 n. 2 (2003); 67-772358-34520102-7352reponame:Vetor (Online)instname:Universidade Federal do Rio Grande (FURG)instacron:FURGCopyright (c) 2014 VETOR - Revista de Ciências Exatas e Engenhariasinfo:eu-repo/semantics/openAccessManica, RogérioBortoli, Álvaro Luis de2023-03-22T15:42:38Zoai:periodicos.furg.br:article/676Revistahttps://periodicos.furg.br/vetorPUBhttps://periodicos.furg.br/vetor/oaigmplatt@furg.br2358-34520102-7352opendoar:2023-03-22T15:42:38Vetor (Online) - Universidade Federal do Rio Grande (FURG)false
dc.title.none.fl_str_mv Numerical simulation of non-newtonian flows through ducts with axisymmetric expansions using power-law model
title Numerical simulation of non-newtonian flows through ducts with axisymmetric expansions using power-law model
spellingShingle Numerical simulation of non-newtonian flows through ducts with axisymmetric expansions using power-law model
Manica, Rogério
Numerical simulation
axisymmetric abrupt expansion
non-Newtonian flow
title_short Numerical simulation of non-newtonian flows through ducts with axisymmetric expansions using power-law model
title_full Numerical simulation of non-newtonian flows through ducts with axisymmetric expansions using power-law model
title_fullStr Numerical simulation of non-newtonian flows through ducts with axisymmetric expansions using power-law model
title_full_unstemmed Numerical simulation of non-newtonian flows through ducts with axisymmetric expansions using power-law model
title_sort Numerical simulation of non-newtonian flows through ducts with axisymmetric expansions using power-law model
author Manica, Rogério
author_facet Manica, Rogério
Bortoli, Álvaro Luis de
author_role author
author2 Bortoli, Álvaro Luis de
author2_role author
dc.contributor.author.fl_str_mv Manica, Rogério
Bortoli, Álvaro Luis de
dc.subject.por.fl_str_mv Numerical simulation
axisymmetric abrupt expansion
non-Newtonian flow
topic Numerical simulation
axisymmetric abrupt expansion
non-Newtonian flow
description This work presents a method to simulate incompressible non-Newtonian flows through a duct with axisymmetric sudden expansion, with emphasis to the expansion ratios. The governing equations are solved using the finite-differences explicit Runge-Kutta time-stepping scheme in nondimensional form in which continuity and momentum are solved simultaneously along the grid points. The power-law model is applied to predict pseudoplastic and dilatant behavior. Numerical results for some expansions ratios are presented for Re=20 and show a good agreement with the theory for these flows. Palavras-Chave: Numerical simulation, axisymmetric abrupt expansion, non-Newtonian flow.
publishDate 2008
dc.date.none.fl_str_mv 2008-02-07
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.furg.br/vetor/article/view/676
url https://periodicos.furg.br/vetor/article/view/676
dc.rights.driver.fl_str_mv Copyright (c) 2014 VETOR - Revista de Ciências Exatas e Engenharias
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2014 VETOR - Revista de Ciências Exatas e Engenharias
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Universidade Federal do Rio Grande
publisher.none.fl_str_mv Universidade Federal do Rio Grande
dc.source.none.fl_str_mv VETOR - Journal of Exact Sciences and Engineering; Vol. 13 No. 2 (2003); 67-77
VETOR - Revista de Ciências Exatas e Engenharias; v. 13 n. 2 (2003); 67-77
2358-3452
0102-7352
reponame:Vetor (Online)
instname:Universidade Federal do Rio Grande (FURG)
instacron:FURG
instname_str Universidade Federal do Rio Grande (FURG)
instacron_str FURG
institution FURG
reponame_str Vetor (Online)
collection Vetor (Online)
repository.name.fl_str_mv Vetor (Online) - Universidade Federal do Rio Grande (FURG)
repository.mail.fl_str_mv gmplatt@furg.br
_version_ 1797041760839401472

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