An effective interface tracking method for simulating the extrudate swell phenomenon
Autor(a) principal: | |
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Data de Publicação: | 2021 |
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/1822/73544 |
Resumo: | The extrudate swell, i.e., the geometrical modifications that take place when the flowing material leaves the confined flow inside a channel and moves freely without the restrictions that are promoted by the walls, is a relevant phenomenon in several polymer processing techniques. For instance, in profile extrusion, the extrudate cross-section is subjected to a number of distortions that are motivated by the swell, which are very difficult to anticipate, especially for complex geometries. As happens in many industrial processes, numerical modelling might provide useful information to support design tasks, i.e., to allow for identifying the best strategy to compensate the changes promoted by the extrudate swell. This study reports the development of an improved interface tracking algorithm that employs the least-squares volume-to-point interpolation method for the grid movement. The formulation is enriched further with the consistent second-order time-accurate non-iterative Pressure-Implicit with Splitting of Operators (PISO) algorithm, which allows for efficiently simulating free-surface flows. The accuracy and robustness of the proposed solver is illustrated through the simulation of the steady planar and asymmetric extrudate swell flows of Newtonian fluids. The role of inertia on the extrudate swell is studied, and the results that are obtained with the newly improved solver show good agreement with reference data that are found in the scientific literature |
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An effective interface tracking method for simulating the extrudate swell phenomenonExtrusionExtrudate swellInterface trackingLeast-squares volume-to-point interpolationConsistent PISOFinite volume methodOpenFOAMEngenharia e Tecnologia::Engenharia MecânicaScience & TechnologyThe extrudate swell, i.e., the geometrical modifications that take place when the flowing material leaves the confined flow inside a channel and moves freely without the restrictions that are promoted by the walls, is a relevant phenomenon in several polymer processing techniques. For instance, in profile extrusion, the extrudate cross-section is subjected to a number of distortions that are motivated by the swell, which are very difficult to anticipate, especially for complex geometries. As happens in many industrial processes, numerical modelling might provide useful information to support design tasks, i.e., to allow for identifying the best strategy to compensate the changes promoted by the extrudate swell. This study reports the development of an improved interface tracking algorithm that employs the least-squares volume-to-point interpolation method for the grid movement. The formulation is enriched further with the consistent second-order time-accurate non-iterative Pressure-Implicit with Splitting of Operators (PISO) algorithm, which allows for efficiently simulating free-surface flows. The accuracy and robustness of the proposed solver is illustrated through the simulation of the steady planar and asymmetric extrudate swell flows of Newtonian fluids. The role of inertia on the extrudate swell is studied, and the results that are obtained with the newly improved solver show good agreement with reference data that are found in the scientific literatureSearch-ON2 (NORTE-07-0162-FEDER-000086) the HPC infrastructure of UMinho under NSRF through ERDF; and FCT I.P. through the Advanced Computing Project CPCA/A00/6057/2020 using the Minho Advanced Computing Center (MACC)MDPIUniversidade do MinhoFakhari, AhmadTukovic, ZeljkoCarneiro, O. S.Fernandes, C.2021-042021-04-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/73544engFakhari, A., Tukovic, Ž., Carneiro, O. S., & Fernandes, C. (2021). An Effective Interface Tracking Method for Simulating the Extrudate Swell Phenomenon. Polymers, 13(8), 13052073-436010.3390/polym13081305https://www.mdpi.com/2073-4360/13/8/1305info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:00:50Zoai:repositorium.sdum.uminho.pt:1822/73544Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:50:42.261023Repositório 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 |
An effective interface tracking method for simulating the extrudate swell phenomenon |
title |
An effective interface tracking method for simulating the extrudate swell phenomenon |
spellingShingle |
An effective interface tracking method for simulating the extrudate swell phenomenon Fakhari, Ahmad Extrusion Extrudate swell Interface tracking Least-squares volume-to-point interpolation Consistent PISO Finite volume method OpenFOAM Engenharia e Tecnologia::Engenharia Mecânica Science & Technology |
title_short |
An effective interface tracking method for simulating the extrudate swell phenomenon |
title_full |
An effective interface tracking method for simulating the extrudate swell phenomenon |
title_fullStr |
An effective interface tracking method for simulating the extrudate swell phenomenon |
title_full_unstemmed |
An effective interface tracking method for simulating the extrudate swell phenomenon |
title_sort |
An effective interface tracking method for simulating the extrudate swell phenomenon |
author |
Fakhari, Ahmad |
author_facet |
Fakhari, Ahmad Tukovic, Zeljko Carneiro, O. S. Fernandes, C. |
author_role |
author |
author2 |
Tukovic, Zeljko Carneiro, O. S. Fernandes, C. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Fakhari, Ahmad Tukovic, Zeljko Carneiro, O. S. Fernandes, C. |
dc.subject.por.fl_str_mv |
Extrusion Extrudate swell Interface tracking Least-squares volume-to-point interpolation Consistent PISO Finite volume method OpenFOAM Engenharia e Tecnologia::Engenharia Mecânica Science & Technology |
topic |
Extrusion Extrudate swell Interface tracking Least-squares volume-to-point interpolation Consistent PISO Finite volume method OpenFOAM Engenharia e Tecnologia::Engenharia Mecânica Science & Technology |
description |
The extrudate swell, i.e., the geometrical modifications that take place when the flowing material leaves the confined flow inside a channel and moves freely without the restrictions that are promoted by the walls, is a relevant phenomenon in several polymer processing techniques. For instance, in profile extrusion, the extrudate cross-section is subjected to a number of distortions that are motivated by the swell, which are very difficult to anticipate, especially for complex geometries. As happens in many industrial processes, numerical modelling might provide useful information to support design tasks, i.e., to allow for identifying the best strategy to compensate the changes promoted by the extrudate swell. This study reports the development of an improved interface tracking algorithm that employs the least-squares volume-to-point interpolation method for the grid movement. The formulation is enriched further with the consistent second-order time-accurate non-iterative Pressure-Implicit with Splitting of Operators (PISO) algorithm, which allows for efficiently simulating free-surface flows. The accuracy and robustness of the proposed solver is illustrated through the simulation of the steady planar and asymmetric extrudate swell flows of Newtonian fluids. The role of inertia on the extrudate swell is studied, and the results that are obtained with the newly improved solver show good agreement with reference data that are found in the scientific literature |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-04 2021-04-01T00:00:00Z |
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/1822/73544 |
url |
http://hdl.handle.net/1822/73544 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Fakhari, A., Tukovic, Ž., Carneiro, O. S., & Fernandes, C. (2021). An Effective Interface Tracking Method for Simulating the Extrudate Swell Phenomenon. Polymers, 13(8), 1305 2073-4360 10.3390/polym13081305 https://www.mdpi.com/2073-4360/13/8/1305 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
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 |
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1799132276450131968 |