Combined CFD-EFD methods applied to determining the form factor of vessels with very low length to beam ratio

Autores
Oyuela, Sebastian; Díaz Ojeda, H.R.; Otero, Alejandro Daniel; Sosa, Roberto
Año de publicación
2026
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This study investigates the influence of scale effects on form factor determination for a fishing vessel with a low length-to-beam (L/B) ratio, using a combined Experimental Fluid Dynamics (EFD) and Computational Fluid Dynamics (CFD) approach. The research compares the behavior of the form factor between a fishing vessel and the well-known KCS benchmark hull. Results show that scale effects have a more significant impact on the fishing vessel, particularly due to increased viscous pressure losses in the stern region. While the non-dimensional frictional resistance component remains similar between both hulls, the non-dimensional pressure component differ significantly, highlighting the influence of hull shape on pressure recovery. The comparison with empirical methods reveals that traditional marine formulations may not adequately capture full scale form factor of hulls with very low length to beam ratio. Instead, the form factor obtained using aircraft drag estimation approaches shows better agreement with CFD predictions at full scale. Based on these findings, the adoption of distinct form factor values at model and full scale is recommended for vessels with similar geometric characteristics, in contrast to conventional extrapolation practices that assume a constant form factor. This methodology may improve the accuracy of effective power predictions and support more reliable design evaluations.
Fil: Oyuela, Sebastian. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina
Fil: Díaz Ojeda, H.R.. Universidad de Las Palmas de Gran Canaria; España
Fil: Otero, Alejandro Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Simulación Computacional para Aplicaciones Tecnológicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina
Fil: Sosa, Roberto. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Form factor
Length to beam ratio
Ship hydrodynamics extrapolation
Ship power estimation
EFD CFD
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/289845
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Combined CFD-EFD methods applied to determining the form factor of vessels with very low length to beam ratioOyuela, SebastianDíaz Ojeda, H.R.Otero, Alejandro DanielSosa, RobertoForm factorLength to beam ratioShip hydrodynamics extrapolationShip power estimationEFD CFDhttps://purl.org/becyt/ford/2.11https://purl.org/becyt/ford/2This study investigates the influence of scale effects on form factor determination for a fishing vessel with a low length-to-beam (L/B) ratio, using a combined Experimental Fluid Dynamics (EFD) and Computational Fluid Dynamics (CFD) approach. The research compares the behavior of the form factor between a fishing vessel and the well-known KCS benchmark hull. Results show that scale effects have a more significant impact on the fishing vessel, particularly due to increased viscous pressure losses in the stern region. While the non-dimensional frictional resistance component remains similar between both hulls, the non-dimensional pressure component differ significantly, highlighting the influence of hull shape on pressure recovery. The comparison with empirical methods reveals that traditional marine formulations may not adequately capture full scale form factor of hulls with very low length to beam ratio. Instead, the form factor obtained using aircraft drag estimation approaches shows better agreement with CFD predictions at full scale. Based on these findings, the adoption of distinct form factor values at model and full scale is recommended for vessels with similar geometric characteristics, in contrast to conventional extrapolation practices that assume a constant form factor. This methodology may improve the accuracy of effective power predictions and support more reliable design evaluations.Fil: Oyuela, Sebastian. Universidad de Buenos Aires. Facultad de Ingeniería; ArgentinaFil: Díaz Ojeda, H.R.. Universidad de Las Palmas de Gran Canaria; EspañaFil: Otero, Alejandro Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Simulación Computacional para Aplicaciones Tecnológicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; ArgentinaFil: Sosa, Roberto. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaPergamon-Elsevier Science Ltd2026-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/289845Oyuela, Sebastian; Díaz Ojeda, H.R.; Otero, Alejandro Daniel; Sosa, Roberto; Combined CFD-EFD methods applied to determining the form factor of vessels with very low length to beam ratio; Pergamon-Elsevier Science Ltd; Ocean Engineering; 352; 4-2026; 1-150029-8018CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0029801826000454info:eu-repo/semantics/altIdentifier/doi/10.1016/j.oceaneng.2026.124211info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-08-25T14:53:11Zoai:ri.conicet.gov.ar:11336/289845instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-08-25 14:53:11.841CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Combined CFD-EFD methods applied to determining the form factor of vessels with very low length to beam ratio
title Combined CFD-EFD methods applied to determining the form factor of vessels with very low length to beam ratio
spellingShingle Combined CFD-EFD methods applied to determining the form factor of vessels with very low length to beam ratio
Oyuela, Sebastian
Form factor
Length to beam ratio
Ship hydrodynamics extrapolation
Ship power estimation
EFD CFD
title_short Combined CFD-EFD methods applied to determining the form factor of vessels with very low length to beam ratio
title_full Combined CFD-EFD methods applied to determining the form factor of vessels with very low length to beam ratio
title_fullStr Combined CFD-EFD methods applied to determining the form factor of vessels with very low length to beam ratio
title_full_unstemmed Combined CFD-EFD methods applied to determining the form factor of vessels with very low length to beam ratio
title_sort Combined CFD-EFD methods applied to determining the form factor of vessels with very low length to beam ratio
dc.creator.none.fl_str_mv Oyuela, Sebastian
Díaz Ojeda, H.R.
Otero, Alejandro Daniel
Sosa, Roberto
author Oyuela, Sebastian
author_facet Oyuela, Sebastian
Díaz Ojeda, H.R.
Otero, Alejandro Daniel
Sosa, Roberto
author_role author
author2 Díaz Ojeda, H.R.
Otero, Alejandro Daniel
Sosa, Roberto
author2_role author
author
author
dc.subject.none.fl_str_mv Form factor
Length to beam ratio
Ship hydrodynamics extrapolation
Ship power estimation
EFD CFD
topic Form factor
Length to beam ratio
Ship hydrodynamics extrapolation
Ship power estimation
EFD CFD
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.11
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv This study investigates the influence of scale effects on form factor determination for a fishing vessel with a low length-to-beam (L/B) ratio, using a combined Experimental Fluid Dynamics (EFD) and Computational Fluid Dynamics (CFD) approach. The research compares the behavior of the form factor between a fishing vessel and the well-known KCS benchmark hull. Results show that scale effects have a more significant impact on the fishing vessel, particularly due to increased viscous pressure losses in the stern region. While the non-dimensional frictional resistance component remains similar between both hulls, the non-dimensional pressure component differ significantly, highlighting the influence of hull shape on pressure recovery. The comparison with empirical methods reveals that traditional marine formulations may not adequately capture full scale form factor of hulls with very low length to beam ratio. Instead, the form factor obtained using aircraft drag estimation approaches shows better agreement with CFD predictions at full scale. Based on these findings, the adoption of distinct form factor values at model and full scale is recommended for vessels with similar geometric characteristics, in contrast to conventional extrapolation practices that assume a constant form factor. This methodology may improve the accuracy of effective power predictions and support more reliable design evaluations.
Fil: Oyuela, Sebastian. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina
Fil: Díaz Ojeda, H.R.. Universidad de Las Palmas de Gran Canaria; España
Fil: Otero, Alejandro Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Simulación Computacional para Aplicaciones Tecnológicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina
Fil: Sosa, Roberto. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description This study investigates the influence of scale effects on form factor determination for a fishing vessel with a low length-to-beam (L/B) ratio, using a combined Experimental Fluid Dynamics (EFD) and Computational Fluid Dynamics (CFD) approach. The research compares the behavior of the form factor between a fishing vessel and the well-known KCS benchmark hull. Results show that scale effects have a more significant impact on the fishing vessel, particularly due to increased viscous pressure losses in the stern region. While the non-dimensional frictional resistance component remains similar between both hulls, the non-dimensional pressure component differ significantly, highlighting the influence of hull shape on pressure recovery. The comparison with empirical methods reveals that traditional marine formulations may not adequately capture full scale form factor of hulls with very low length to beam ratio. Instead, the form factor obtained using aircraft drag estimation approaches shows better agreement with CFD predictions at full scale. Based on these findings, the adoption of distinct form factor values at model and full scale is recommended for vessels with similar geometric characteristics, in contrast to conventional extrapolation practices that assume a constant form factor. This methodology may improve the accuracy of effective power predictions and support more reliable design evaluations.
publishDate 2026
dc.date.none.fl_str_mv 2026-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/289845
Oyuela, Sebastian; Díaz Ojeda, H.R.; Otero, Alejandro Daniel; Sosa, Roberto; Combined CFD-EFD methods applied to determining the form factor of vessels with very low length to beam ratio; Pergamon-Elsevier Science Ltd; Ocean Engineering; 352; 4-2026; 1-15
0029-8018
CONICET Digital
CONICET
url http://hdl.handle.net/11336/289845
identifier_str_mv Oyuela, Sebastian; Díaz Ojeda, H.R.; Otero, Alejandro Daniel; Sosa, Roberto; Combined CFD-EFD methods applied to determining the form factor of vessels with very low length to beam ratio; Pergamon-Elsevier Science Ltd; Ocean Engineering; 352; 4-2026; 1-15
0029-8018
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0029801826000454
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.oceaneng.2026.124211
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.265058

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