Numerical investigation of the cavitation effects on the wake dynamics behind a blunt trailing edge hydrofoil

The influence of cavitation on the wake behind a NACA 0009 hydrofoil with a truncated trailing edge has been numerically investigated using a homogeneous mixture model coupled with a controlled decay SST ¿-Re¿t turbulence model. Using optimal definitions of the inlet turbulent intensity and the empi...

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Autores: Chen, Jian, Escaler Puigoriol, Francesc Xavier|||0000-0002-9374-7749
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/406927
Acceso en línea:https://hdl.handle.net/2117/406927
https://dx.doi.org/10.1016/j.oceaneng.2024.117599
Access Level:acceso abierto
Palabra clave:Computational fluid dynamics
Vortex shedding
Hydrofoil
Cavitation
Vortex identification
Computational fluid dynamics (CFD)
Dinàmica de fluids computacional
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
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spelling Numerical investigation of the cavitation effects on the wake dynamics behind a blunt trailing edge hydrofoilChen, JianEscaler Puigoriol, Francesc Xavier|||0000-0002-9374-7749Computational fluid dynamicsVortex sheddingHydrofoilCavitationVortex identificationComputational fluid dynamics (CFD)Dinàmica de fluids computacionalÀrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluidsThe influence of cavitation on the wake behind a NACA 0009 hydrofoil with a truncated trailing edge has been numerically investigated using a homogeneous mixture model coupled with a controlled decay SST ¿-Re¿t turbulence model. Using optimal definitions of the inlet turbulent intensity and the empirical condensation and vaporization coefficients of the cavitation model, simulated results have shown a good agreement with experimental data. Notably, the numerical results exhibit negligible deviations of less than 0.7% in vortex shedding frequencies for different cavitation levels. If the size of the vortex cavitation grows, a substantial increase in both lift and drag coefficients on the hydrofoil is observed. Furthermore, the influence of cavitation on the trajectories of vortex centers and the morphology of the primary shedding vortices has been revealed using a vortex identification method. The findings highlight that the cavitation development enhances the advected velocity of the shedding vortices while decreasing the streamwise inter-vortex spacing. Consequently, both factors are found to contribute to the increase of the vortex-shedding frequency behind the NACA 0009 hydrofoil with the truncated trailing edge when cavitation appears and develops.Peer ReviewedElsevier20242024-03-2820242024-04-23journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/406927https://dx.doi.org/10.1016/j.oceaneng.2024.117599reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/4069272026-05-27T15:37:01Z
dc.title.none.fl_str_mv Numerical investigation of the cavitation effects on the wake dynamics behind a blunt trailing edge hydrofoil
title Numerical investigation of the cavitation effects on the wake dynamics behind a blunt trailing edge hydrofoil
spellingShingle Numerical investigation of the cavitation effects on the wake dynamics behind a blunt trailing edge hydrofoil
Chen, Jian
Computational fluid dynamics
Vortex shedding
Hydrofoil
Cavitation
Vortex identification
Computational fluid dynamics (CFD)
Dinàmica de fluids computacional
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
title_short Numerical investigation of the cavitation effects on the wake dynamics behind a blunt trailing edge hydrofoil
title_full Numerical investigation of the cavitation effects on the wake dynamics behind a blunt trailing edge hydrofoil
title_fullStr Numerical investigation of the cavitation effects on the wake dynamics behind a blunt trailing edge hydrofoil
title_full_unstemmed Numerical investigation of the cavitation effects on the wake dynamics behind a blunt trailing edge hydrofoil
title_sort Numerical investigation of the cavitation effects on the wake dynamics behind a blunt trailing edge hydrofoil
dc.creator.none.fl_str_mv Chen, Jian
Escaler Puigoriol, Francesc Xavier|||0000-0002-9374-7749
author Chen, Jian
author_facet Chen, Jian
Escaler Puigoriol, Francesc Xavier|||0000-0002-9374-7749
author_role author
author2 Escaler Puigoriol, Francesc Xavier|||0000-0002-9374-7749
author2_role author
dc.subject.none.fl_str_mv Computational fluid dynamics
Vortex shedding
Hydrofoil
Cavitation
Vortex identification
Computational fluid dynamics (CFD)
Dinàmica de fluids computacional
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
topic Computational fluid dynamics
Vortex shedding
Hydrofoil
Cavitation
Vortex identification
Computational fluid dynamics (CFD)
Dinàmica de fluids computacional
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
description The influence of cavitation on the wake behind a NACA 0009 hydrofoil with a truncated trailing edge has been numerically investigated using a homogeneous mixture model coupled with a controlled decay SST ¿-Re¿t turbulence model. Using optimal definitions of the inlet turbulent intensity and the empirical condensation and vaporization coefficients of the cavitation model, simulated results have shown a good agreement with experimental data. Notably, the numerical results exhibit negligible deviations of less than 0.7% in vortex shedding frequencies for different cavitation levels. If the size of the vortex cavitation grows, a substantial increase in both lift and drag coefficients on the hydrofoil is observed. Furthermore, the influence of cavitation on the trajectories of vortex centers and the morphology of the primary shedding vortices has been revealed using a vortex identification method. The findings highlight that the cavitation development enhances the advected velocity of the shedding vortices while decreasing the streamwise inter-vortex spacing. Consequently, both factors are found to contribute to the increase of the vortex-shedding frequency behind the NACA 0009 hydrofoil with the truncated trailing edge when cavitation appears and develops.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-03-28
2024
2024-04-23
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/406927
https://dx.doi.org/10.1016/j.oceaneng.2024.117599
url https://hdl.handle.net/2117/406927
https://dx.doi.org/10.1016/j.oceaneng.2024.117599
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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