Simulação CFD de um leito de jorro cônico utilizando OpenFOAM
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Tipo de documento: | Trabalho de conclusão de curso |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFSCAR |
Texto Completo: | https://repositorio.ufscar.br/handle/ufscar/14646 |
Resumo: | The performance of open-source computational fluid dynamics (CFD) software, OpenFOAM, relative to the widely-used Ansys suite of CFD software, was evaluated through the validation of two equivalent simulations of a spouted bed utilizing the two-fluid model (TFM). The grid used in the simulation was created in Meshing, part of the Ansys suite, and imported to OpenFOAM through an internal command, then validated by grid independence tests through the calculation of a Grid Convergence Index (GCI). Experimental tests were run according to the methodology proposed by Mathur and Epstein (1974), aiming to obtain the equipment's characteristic curve and determine operational fluid dynamic parameters. OpenFOAM performed in a satisfactory manner, resulting in shorter simulation times and greater precision in obtaining characteristic parameters such as stable spout height and minimum spout velocity; however, local grid collapses due to faulty mesh conversion were noted, which led to distortion in the spout regimes and impacted on the visualization of the simulation behaviour as seen in the volumetric solid fraction contour plots. The two-fluid approach was shown to be adequate for both softwares, despite the differences noted between experiment and simulation shown for the pressure drop versus velocity curve. It was concluded that, despite the heavy influence of local cell collapses suffered in the mesh conversion, OpenFOAM is entirely capable of generating good results for spouted bed simulations, with the added benefits of free and open-source use and enhanced processing speed, even in cases where the mesh used is highly complex relative to what is usually employed in similar works. |
id |
SCAR_92a7f5396e904eb0a47fa8dd746da7bd |
---|---|
oai_identifier_str |
oai:repositorio.ufscar.br:ufscar/14646 |
network_acronym_str |
SCAR |
network_name_str |
Repositório Institucional da UFSCAR |
repository_id_str |
4322 |
spelling |
Baudel, Paulo Henrique de SousaBéttega, Rodrigohttp://lattes.cnpq.br/1379682125857376Batista, Júnia Natália Mendeshttp://lattes.cnpq.br/8738610817154807http://lattes.cnpq.br/10873833737974534f280de4-cdc2-454e-9445-a404e4cb11272021-07-21T18:24:08Z2021-07-21T18:24:08Z2021-06-28BAUDEL, Paulo Henrique de Sousa. SIMULAÇÃO CFD DE UM LEITO DE JORRO CÔNICO UTILIZANDO O OPENFOAM. 2021. Trabalho de Conclusão de Curso (Graduação em Engenharia Química) – Universidade Federal de São Carlos, São Carlos, 2021. Disponível em: https://repositorio.ufscar.br/handle/ufscar/14646.https://repositorio.ufscar.br/handle/ufscar/14646The performance of open-source computational fluid dynamics (CFD) software, OpenFOAM, relative to the widely-used Ansys suite of CFD software, was evaluated through the validation of two equivalent simulations of a spouted bed utilizing the two-fluid model (TFM). The grid used in the simulation was created in Meshing, part of the Ansys suite, and imported to OpenFOAM through an internal command, then validated by grid independence tests through the calculation of a Grid Convergence Index (GCI). Experimental tests were run according to the methodology proposed by Mathur and Epstein (1974), aiming to obtain the equipment's characteristic curve and determine operational fluid dynamic parameters. OpenFOAM performed in a satisfactory manner, resulting in shorter simulation times and greater precision in obtaining characteristic parameters such as stable spout height and minimum spout velocity; however, local grid collapses due to faulty mesh conversion were noted, which led to distortion in the spout regimes and impacted on the visualization of the simulation behaviour as seen in the volumetric solid fraction contour plots. The two-fluid approach was shown to be adequate for both softwares, despite the differences noted between experiment and simulation shown for the pressure drop versus velocity curve. It was concluded that, despite the heavy influence of local cell collapses suffered in the mesh conversion, OpenFOAM is entirely capable of generating good results for spouted bed simulations, with the added benefits of free and open-source use and enhanced processing speed, even in cases where the mesh used is highly complex relative to what is usually employed in similar works.A performance da ferramenta de fluidodinâmica computacional (CFD) em código aberto OpenFOAM foi comparada ao software comercial Ansys Fluent através da validação do modelo de dois fluidos (TFM) na fluidodinâmica do leito de jorro em simulações equivalentes. A malha computacional escolhida foi gerada no software de licença comercial, importada ao OpenFOAM por meio de rotina interna e validada por meio de testes de independência de malha utilizando a metodologia GCI. Foram realizados ensaios na unidade experimental representada de acordo com a metodologia proposta por Mathur e Epstein (1974), de modo a obter a curva fluidodinâmica real do equipamento e determinar parâmetros operacionais característicos. A ferramenta OpenFOAM apresentou resultados satisfatórios em relação ao software comercial, obtendo menores tempos de simulação e maior precisão na obtenção de parâmetros característicos como altura do leito de jorro estável e velocidade de mínimo jorro; no entanto, falhas na importação da malha ao software de código aberto resultaram em distorções na simulação do regime de jorro, observadas através dos contornos na fração volumétrica de sólidos. O modelo TFM mostrou-se adequado para os dois softwares, apesar das divergências relativas à modelagem matemática observadas em relação à curva fluidodinâmica experimental em ambos os casos. Concluiu-se que, apesar da forte influência dos colapsos incorridos na malha pela importação do OpenFOAM, o software de código aberto é capaz de gerar bons resultados com os grandes benefícios de gratuidade de uso e agilidade no processamento, mesmo em casos onde a malha computacional apresenta elevado nível de complexidade e densidade de células se comparada aos exemplos disponíveis na literatura.Não recebi financiamentoporUniversidade Federal de São CarlosCâmpus São CarlosEngenharia Química - EQUFSCarAttribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessCFDCódigo abertoOpenFOAMLeito de JorroTFMGCIAnsys FluentENGENHARIAS::ENGENHARIA QUIMICA::OPERACOES INDUSTRIAIS E EQUIPAMENTOS PARA ENGENHARIA QUIMICASimulação CFD de um leito de jorro cônico utilizando OpenFOAMCFD simulation of spouted bed using OpenFOAMinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bachelorThesis600600a8b181e8-2587-4ff2-986f-7c9d09fddee3reponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINALTG_Paulo Baudel_Revisado_Final.pdfTG_Paulo Baudel_Revisado_Final.pdfapplication/pdf8069400https://repositorio.ufscar.br/bitstream/ufscar/14646/1/TG_Paulo%20Baudel_Revisado_Final.pdfc5a8eb3a3f649be9432f0c2933d86656MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8811https://repositorio.ufscar.br/bitstream/ufscar/14646/2/license_rdfe39d27027a6cc9cb039ad269a5db8e34MD52TEXTTG_Paulo Baudel_Revisado_Final.pdf.txtTG_Paulo Baudel_Revisado_Final.pdf.txtExtracted texttext/plain107147https://repositorio.ufscar.br/bitstream/ufscar/14646/3/TG_Paulo%20Baudel_Revisado_Final.pdf.txt449aa4f026577d4e2d491bfc0582180eMD53THUMBNAILTG_Paulo Baudel_Revisado_Final.pdf.jpgTG_Paulo Baudel_Revisado_Final.pdf.jpgIM Thumbnailimage/jpeg6916https://repositorio.ufscar.br/bitstream/ufscar/14646/4/TG_Paulo%20Baudel_Revisado_Final.pdf.jpg12cf866a69cf2135d5b7e907a78b3ab1MD54ufscar/146462023-09-18 18:32:13.602oai:repositorio.ufscar.br:ufscar/14646Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222023-09-18T18:32:13Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.por.fl_str_mv |
Simulação CFD de um leito de jorro cônico utilizando OpenFOAM |
dc.title.alternative.por.fl_str_mv |
CFD simulation of spouted bed using OpenFOAM |
title |
Simulação CFD de um leito de jorro cônico utilizando OpenFOAM |
spellingShingle |
Simulação CFD de um leito de jorro cônico utilizando OpenFOAM Baudel, Paulo Henrique de Sousa CFD Código aberto OpenFOAM Leito de Jorro TFM GCI Ansys Fluent ENGENHARIAS::ENGENHARIA QUIMICA::OPERACOES INDUSTRIAIS E EQUIPAMENTOS PARA ENGENHARIA QUIMICA |
title_short |
Simulação CFD de um leito de jorro cônico utilizando OpenFOAM |
title_full |
Simulação CFD de um leito de jorro cônico utilizando OpenFOAM |
title_fullStr |
Simulação CFD de um leito de jorro cônico utilizando OpenFOAM |
title_full_unstemmed |
Simulação CFD de um leito de jorro cônico utilizando OpenFOAM |
title_sort |
Simulação CFD de um leito de jorro cônico utilizando OpenFOAM |
author |
Baudel, Paulo Henrique de Sousa |
author_facet |
Baudel, Paulo Henrique de Sousa |
author_role |
author |
dc.contributor.authorlattes.por.fl_str_mv |
http://lattes.cnpq.br/1087383373797453 |
dc.contributor.author.fl_str_mv |
Baudel, Paulo Henrique de Sousa |
dc.contributor.advisor1.fl_str_mv |
Béttega, Rodrigo |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/1379682125857376 |
dc.contributor.advisor-co1.fl_str_mv |
Batista, Júnia Natália Mendes |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/8738610817154807 |
dc.contributor.authorID.fl_str_mv |
4f280de4-cdc2-454e-9445-a404e4cb1127 |
contributor_str_mv |
Béttega, Rodrigo Batista, Júnia Natália Mendes |
dc.subject.por.fl_str_mv |
CFD Código aberto OpenFOAM Leito de Jorro TFM GCI Ansys Fluent |
topic |
CFD Código aberto OpenFOAM Leito de Jorro TFM GCI Ansys Fluent ENGENHARIAS::ENGENHARIA QUIMICA::OPERACOES INDUSTRIAIS E EQUIPAMENTOS PARA ENGENHARIA QUIMICA |
dc.subject.cnpq.fl_str_mv |
ENGENHARIAS::ENGENHARIA QUIMICA::OPERACOES INDUSTRIAIS E EQUIPAMENTOS PARA ENGENHARIA QUIMICA |
description |
The performance of open-source computational fluid dynamics (CFD) software, OpenFOAM, relative to the widely-used Ansys suite of CFD software, was evaluated through the validation of two equivalent simulations of a spouted bed utilizing the two-fluid model (TFM). The grid used in the simulation was created in Meshing, part of the Ansys suite, and imported to OpenFOAM through an internal command, then validated by grid independence tests through the calculation of a Grid Convergence Index (GCI). Experimental tests were run according to the methodology proposed by Mathur and Epstein (1974), aiming to obtain the equipment's characteristic curve and determine operational fluid dynamic parameters. OpenFOAM performed in a satisfactory manner, resulting in shorter simulation times and greater precision in obtaining characteristic parameters such as stable spout height and minimum spout velocity; however, local grid collapses due to faulty mesh conversion were noted, which led to distortion in the spout regimes and impacted on the visualization of the simulation behaviour as seen in the volumetric solid fraction contour plots. The two-fluid approach was shown to be adequate for both softwares, despite the differences noted between experiment and simulation shown for the pressure drop versus velocity curve. It was concluded that, despite the heavy influence of local cell collapses suffered in the mesh conversion, OpenFOAM is entirely capable of generating good results for spouted bed simulations, with the added benefits of free and open-source use and enhanced processing speed, even in cases where the mesh used is highly complex relative to what is usually employed in similar works. |
publishDate |
2021 |
dc.date.accessioned.fl_str_mv |
2021-07-21T18:24:08Z |
dc.date.available.fl_str_mv |
2021-07-21T18:24:08Z |
dc.date.issued.fl_str_mv |
2021-06-28 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/bachelorThesis |
format |
bachelorThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
BAUDEL, Paulo Henrique de Sousa. SIMULAÇÃO CFD DE UM LEITO DE JORRO CÔNICO UTILIZANDO O OPENFOAM. 2021. Trabalho de Conclusão de Curso (Graduação em Engenharia Química) – Universidade Federal de São Carlos, São Carlos, 2021. Disponível em: https://repositorio.ufscar.br/handle/ufscar/14646. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufscar.br/handle/ufscar/14646 |
identifier_str_mv |
BAUDEL, Paulo Henrique de Sousa. SIMULAÇÃO CFD DE UM LEITO DE JORRO CÔNICO UTILIZANDO O OPENFOAM. 2021. Trabalho de Conclusão de Curso (Graduação em Engenharia Química) – Universidade Federal de São Carlos, São Carlos, 2021. Disponível em: https://repositorio.ufscar.br/handle/ufscar/14646. |
url |
https://repositorio.ufscar.br/handle/ufscar/14646 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.confidence.fl_str_mv |
600 600 |
dc.relation.authority.fl_str_mv |
a8b181e8-2587-4ff2-986f-7c9d09fddee3 |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de São Carlos Câmpus São Carlos Engenharia Química - EQ |
dc.publisher.initials.fl_str_mv |
UFSCar |
publisher.none.fl_str_mv |
Universidade Federal de São Carlos Câmpus São Carlos Engenharia Química - EQ |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFSCAR instname:Universidade Federal de São Carlos (UFSCAR) instacron:UFSCAR |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
UFSCAR |
institution |
UFSCAR |
reponame_str |
Repositório Institucional da UFSCAR |
collection |
Repositório Institucional da UFSCAR |
bitstream.url.fl_str_mv |
https://repositorio.ufscar.br/bitstream/ufscar/14646/1/TG_Paulo%20Baudel_Revisado_Final.pdf https://repositorio.ufscar.br/bitstream/ufscar/14646/2/license_rdf https://repositorio.ufscar.br/bitstream/ufscar/14646/3/TG_Paulo%20Baudel_Revisado_Final.pdf.txt https://repositorio.ufscar.br/bitstream/ufscar/14646/4/TG_Paulo%20Baudel_Revisado_Final.pdf.jpg |
bitstream.checksum.fl_str_mv |
c5a8eb3a3f649be9432f0c2933d86656 e39d27027a6cc9cb039ad269a5db8e34 449aa4f026577d4e2d491bfc0582180e 12cf866a69cf2135d5b7e907a78b3ab1 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
|
_version_ |
1802136393658400768 |