Modeling the Turbulent Flow of Pulp Suspensions
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/15555 https://doi.org/10.1021/ie101500h |
Resumo: | Pulp fiber suspensions are complex systems because the components present singular and complex interactions between them. A mechanistic model for the turbulent flow regime of industrial pulp suspensions was developed on the basis of a CFD code, using the chemical engineering module of COMSOL Multiphysics software. The standard k-ε turbulence model, chosen to simulate turbulence, was tested and validated using four different industrial pulp suspensions previously characterized experimentally. The modeled pressure drop profiles agree very well with the experimental results obtained in a pilot rig. Therefore, the k-ε turbulence model for the simulation of pulp fiber suspension flows, associated with experimental rheological data, proved to be a prompt strategy to attain good prediction of pressure drop for fiber suspension flows. Moreover, the adjustment of the turbulence parameters confirmed previous studies, where it was concluded that the existence of particles, such as fibers, in a fluid flow induces a turbulence damping. |
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Modeling the Turbulent Flow of Pulp SuspensionsPulp fiber suspensions are complex systems because the components present singular and complex interactions between them. A mechanistic model for the turbulent flow regime of industrial pulp suspensions was developed on the basis of a CFD code, using the chemical engineering module of COMSOL Multiphysics software. The standard k-ε turbulence model, chosen to simulate turbulence, was tested and validated using four different industrial pulp suspensions previously characterized experimentally. The modeled pressure drop profiles agree very well with the experimental results obtained in a pilot rig. Therefore, the k-ε turbulence model for the simulation of pulp fiber suspension flows, associated with experimental rheological data, proved to be a prompt strategy to attain good prediction of pressure drop for fiber suspension flows. Moreover, the adjustment of the turbulence parameters confirmed previous studies, where it was concluded that the existence of particles, such as fibers, in a fluid flow induces a turbulence damping.2011-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/15555http://hdl.handle.net/10316/15555https://doi.org/10.1021/ie101500heng0888-5885http://pubs.acs.org/doi/pdfplus/10.1021/ie101500hmetadata only accessinfo:eu-repo/semantics/openAccessVentura, Carla A. F.Garcia, Fernando A. P.Ferreira, Paulo J.Rasteiro, M. Graçareponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2021-11-09T08:45:44Zoai:estudogeral.uc.pt:10316/15555Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:59:12.865076Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Modeling the Turbulent Flow of Pulp Suspensions |
title |
Modeling the Turbulent Flow of Pulp Suspensions |
spellingShingle |
Modeling the Turbulent Flow of Pulp Suspensions Ventura, Carla A. F. |
title_short |
Modeling the Turbulent Flow of Pulp Suspensions |
title_full |
Modeling the Turbulent Flow of Pulp Suspensions |
title_fullStr |
Modeling the Turbulent Flow of Pulp Suspensions |
title_full_unstemmed |
Modeling the Turbulent Flow of Pulp Suspensions |
title_sort |
Modeling the Turbulent Flow of Pulp Suspensions |
author |
Ventura, Carla A. F. |
author_facet |
Ventura, Carla A. F. Garcia, Fernando A. P. Ferreira, Paulo J. Rasteiro, M. Graça |
author_role |
author |
author2 |
Garcia, Fernando A. P. Ferreira, Paulo J. Rasteiro, M. Graça |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Ventura, Carla A. F. Garcia, Fernando A. P. Ferreira, Paulo J. Rasteiro, M. Graça |
description |
Pulp fiber suspensions are complex systems because the components present singular and complex interactions between them. A mechanistic model for the turbulent flow regime of industrial pulp suspensions was developed on the basis of a CFD code, using the chemical engineering module of COMSOL Multiphysics software. The standard k-ε turbulence model, chosen to simulate turbulence, was tested and validated using four different industrial pulp suspensions previously characterized experimentally. The modeled pressure drop profiles agree very well with the experimental results obtained in a pilot rig. Therefore, the k-ε turbulence model for the simulation of pulp fiber suspension flows, associated with experimental rheological data, proved to be a prompt strategy to attain good prediction of pressure drop for fiber suspension flows. Moreover, the adjustment of the turbulence parameters confirmed previous studies, where it was concluded that the existence of particles, such as fibers, in a fluid flow induces a turbulence damping. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-07 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/15555 http://hdl.handle.net/10316/15555 https://doi.org/10.1021/ie101500h |
url |
http://hdl.handle.net/10316/15555 https://doi.org/10.1021/ie101500h |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0888-5885 http://pubs.acs.org/doi/pdfplus/10.1021/ie101500h |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133883559575552 |