The drag coefficient variations across different speeds in able-bodied, transradial and transtibial amputee cyclists by numerical simulations

Detalhes bibliográficos
Autor(a) principal: Forte, Pedro
Data de Publicação: 2023
Outros Autores: Morais, Jorge E., Branquinho, Luís, Neiva, Henrique Pereira, Monteiro, António M., Barbosa, Tiago M., Silva, António J., Marinho, Daniel A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://doi.org/10.6063/motricidade.27479
Resumo: Drag crisis has been described as a drop in the drag coefficient (Cd). This procedure was lately assessed in able-bodied cyclists in time trial position by computational fluid dynamics (CFD). Therefore, the aim of this study was to assess the phenomenon of the drag crisis by computer fluid dynamics in transradial and transtibial amputee cyclists in the upright position. A male elite-level cyclist was recruited for this research. The subject was scanned (3D geometry with a 3D Scan) with his competition bicycle, helmet, suit, and shoes. Consequently, transradial and transtibial 3D models were created editing the able-bodied 3D model. To perform the CFD analyses, a domain measuring 7 x 2.5 x 2.5 m (length, width and height, respectively) was created around each bicycle-cyclist model. The domains were meshed with more than 42 million elements. Numerical simulations by CFD were performed in fluent numerical for speeds between 1 m/s and 13 m/s, with increments of 1 m/s. The total Cd decreased with speed. It ranged from 0.84 to 0.55 in the able-bodied, 0.86 to 0.64 in the transradial and 0.90 to 0.61 in the transtibial. The drag crisis phenomenon was observed between 1m/s and 4m/s in all models.
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spelling The drag coefficient variations across different speeds in able-bodied, transradial and transtibial amputee cyclists by numerical simulationsOriginal ArticleDrag crisis has been described as a drop in the drag coefficient (Cd). This procedure was lately assessed in able-bodied cyclists in time trial position by computational fluid dynamics (CFD). Therefore, the aim of this study was to assess the phenomenon of the drag crisis by computer fluid dynamics in transradial and transtibial amputee cyclists in the upright position. A male elite-level cyclist was recruited for this research. The subject was scanned (3D geometry with a 3D Scan) with his competition bicycle, helmet, suit, and shoes. Consequently, transradial and transtibial 3D models were created editing the able-bodied 3D model. To perform the CFD analyses, a domain measuring 7 x 2.5 x 2.5 m (length, width and height, respectively) was created around each bicycle-cyclist model. The domains were meshed with more than 42 million elements. Numerical simulations by CFD were performed in fluent numerical for speeds between 1 m/s and 13 m/s, with increments of 1 m/s. The total Cd decreased with speed. It ranged from 0.84 to 0.55 in the able-bodied, 0.86 to 0.64 in the transradial and 0.90 to 0.61 in the transtibial. The drag crisis phenomenon was observed between 1m/s and 4m/s in all models.Edições Sílabas Didáticas2023-03-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://doi.org/10.6063/motricidade.27479eng2182-29721646-107XForte, PedroMorais, Jorge E.Branquinho, LuísNeiva, Henrique PereiraMonteiro, António M.Barbosa, Tiago M.Silva, António J.Marinho, Daniel A.info: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:RCAAP2023-08-31T13:45:36Zoai:ojs.revistas.rcaap.pt:article/27479Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:49:58.389534Repositório 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 The drag coefficient variations across different speeds in able-bodied, transradial and transtibial amputee cyclists by numerical simulations
title The drag coefficient variations across different speeds in able-bodied, transradial and transtibial amputee cyclists by numerical simulations
spellingShingle The drag coefficient variations across different speeds in able-bodied, transradial and transtibial amputee cyclists by numerical simulations
Forte, Pedro
Original Article
title_short The drag coefficient variations across different speeds in able-bodied, transradial and transtibial amputee cyclists by numerical simulations
title_full The drag coefficient variations across different speeds in able-bodied, transradial and transtibial amputee cyclists by numerical simulations
title_fullStr The drag coefficient variations across different speeds in able-bodied, transradial and transtibial amputee cyclists by numerical simulations
title_full_unstemmed The drag coefficient variations across different speeds in able-bodied, transradial and transtibial amputee cyclists by numerical simulations
title_sort The drag coefficient variations across different speeds in able-bodied, transradial and transtibial amputee cyclists by numerical simulations
author Forte, Pedro
author_facet Forte, Pedro
Morais, Jorge E.
Branquinho, Luís
Neiva, Henrique Pereira
Monteiro, António M.
Barbosa, Tiago M.
Silva, António J.
Marinho, Daniel A.
author_role author
author2 Morais, Jorge E.
Branquinho, Luís
Neiva, Henrique Pereira
Monteiro, António M.
Barbosa, Tiago M.
Silva, António J.
Marinho, Daniel A.
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Forte, Pedro
Morais, Jorge E.
Branquinho, Luís
Neiva, Henrique Pereira
Monteiro, António M.
Barbosa, Tiago M.
Silva, António J.
Marinho, Daniel A.
dc.subject.por.fl_str_mv Original Article
topic Original Article
description Drag crisis has been described as a drop in the drag coefficient (Cd). This procedure was lately assessed in able-bodied cyclists in time trial position by computational fluid dynamics (CFD). Therefore, the aim of this study was to assess the phenomenon of the drag crisis by computer fluid dynamics in transradial and transtibial amputee cyclists in the upright position. A male elite-level cyclist was recruited for this research. The subject was scanned (3D geometry with a 3D Scan) with his competition bicycle, helmet, suit, and shoes. Consequently, transradial and transtibial 3D models were created editing the able-bodied 3D model. To perform the CFD analyses, a domain measuring 7 x 2.5 x 2.5 m (length, width and height, respectively) was created around each bicycle-cyclist model. The domains were meshed with more than 42 million elements. Numerical simulations by CFD were performed in fluent numerical for speeds between 1 m/s and 13 m/s, with increments of 1 m/s. The total Cd decreased with speed. It ranged from 0.84 to 0.55 in the able-bodied, 0.86 to 0.64 in the transradial and 0.90 to 0.61 in the transtibial. The drag crisis phenomenon was observed between 1m/s and 4m/s in all models.
publishDate 2023
dc.date.none.fl_str_mv 2023-03-30
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 https://doi.org/10.6063/motricidade.27479
url https://doi.org/10.6063/motricidade.27479
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2182-2972
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dc.publisher.none.fl_str_mv Edições Sílabas Didáticas
publisher.none.fl_str_mv Edições Sílabas Didáticas
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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