High fidelity CFD models comparison to potential flow method in the simulation of full scale floating platform under free decay tests

The use of simulation models based on potential flow is widespread in the wind industry for the simulation of floating wind turbines. However, these analytical models have shortcomings in correctly representing the behavior of Floating Offshore Wind Turbines (FOWTs) under extreme wind and wave condi...

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Autores: Gil Liberal, Miguel, Armañanzas Goñi, Javier, Torres Salcedo, Alexia, Fuertes Bonel, Juan Pablo, Campaña, Guillén, Méndez López, Beatriz, León Iriarte, Javier
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Recursos:Universidad Pública de Navarra
Repositorio:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
OAI Identifier:oai:academica-e.unavarra.es:2454/54076
Acesso em linha:https://hdl.handle.net/2454/54076
Access Level:acceso abierto
Palavra-chave:CFD
FOWT
Lattice Boltzmann
OpenFOAM
XFlow
HydroDyn
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spelling High fidelity CFD models comparison to potential flow method in the simulation of full scale floating platform under free decay testsGil Liberal, MiguelArmañanzas Goñi, JavierTorres Salcedo, AlexiaFuertes Bonel, Juan PabloCampaña, GuillénMéndez López, BeatrizLeón Iriarte, JavierCFDFOWTLattice BoltzmannOpenFOAMXFlowHydroDynThe use of simulation models based on potential flow is widespread in the wind industry for the simulation of floating wind turbines. However, these analytical models have shortcomings in correctly representing the behavior of Floating Offshore Wind Turbines (FOWTs) under extreme wind and wave conditions. High fidelity Computational Fluid Dynamics (CFD) simulations aim to develop models where the fluid-structure interaction is more accurately modeled, allowing to correctly predict the behavior of wind turbines and thus to redesign structural components and save costs. In this paper, two different CFD simulation models are developed and compared, including different turbulence models (Reynolds-Averaged Navier-Stokes (RANS) and Large Eddy Simulation (LES)), numerical methodologies (Navier-Stokes and Lattice-Boltzmann method) and mooring models (Quasi-Static and Dynamic). Different free decay Load Cases (LC) are performed in XFlow and OpenFOAM, and the damping ratio and natural period of the system are analyzed with different mooring arrangements (Multi-Point Mooring (MPM) and Single-Point Mooring (SPM)), comparing all results with respect to a potential flow model (HydroDyn). A maximum error of 3.3 % in natural period and 1.6 % error in damping factor is obtained, small enough to validate the results of CFD models. Vorticity is also analyzed to understand the differences between both CFD models. Finally, the stress of the mooring lines is computed, which allows validating the mooring system model implemented in XFlow by means of external functions.The authors acknowledge the support given by the Government of Navarre (Research project: PC042-043 COSTA).ElsevierIngenieríaIngeniaritzaInstitute of Smart Cities - ISCGobierno de Navarra / Nafarroako Gobernua2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2454/54076reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarrainstname:Universidad Pública de NavarraInglésinfo:eu-repo/grantAgreement/Gobierno de Navarra//PC042-043 COSTA© 2025 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC license.http://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessoai:academica-e.unavarra.es:2454/540762026-06-17T12:41:47Z
dc.title.none.fl_str_mv High fidelity CFD models comparison to potential flow method in the simulation of full scale floating platform under free decay tests
title High fidelity CFD models comparison to potential flow method in the simulation of full scale floating platform under free decay tests
spellingShingle High fidelity CFD models comparison to potential flow method in the simulation of full scale floating platform under free decay tests
Gil Liberal, Miguel
CFD
FOWT
Lattice Boltzmann
OpenFOAM
XFlow
HydroDyn
title_short High fidelity CFD models comparison to potential flow method in the simulation of full scale floating platform under free decay tests
title_full High fidelity CFD models comparison to potential flow method in the simulation of full scale floating platform under free decay tests
title_fullStr High fidelity CFD models comparison to potential flow method in the simulation of full scale floating platform under free decay tests
title_full_unstemmed High fidelity CFD models comparison to potential flow method in the simulation of full scale floating platform under free decay tests
title_sort High fidelity CFD models comparison to potential flow method in the simulation of full scale floating platform under free decay tests
dc.creator.none.fl_str_mv Gil Liberal, Miguel
Armañanzas Goñi, Javier
Torres Salcedo, Alexia
Fuertes Bonel, Juan Pablo
Campaña, Guillén
Méndez López, Beatriz
León Iriarte, Javier
author Gil Liberal, Miguel
author_facet Gil Liberal, Miguel
Armañanzas Goñi, Javier
Torres Salcedo, Alexia
Fuertes Bonel, Juan Pablo
Campaña, Guillén
Méndez López, Beatriz
León Iriarte, Javier
author_role author
author2 Armañanzas Goñi, Javier
Torres Salcedo, Alexia
Fuertes Bonel, Juan Pablo
Campaña, Guillén
Méndez López, Beatriz
León Iriarte, Javier
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ingeniería
Ingeniaritza
Institute of Smart Cities - ISC
Gobierno de Navarra / Nafarroako Gobernua
dc.subject.none.fl_str_mv CFD
FOWT
Lattice Boltzmann
OpenFOAM
XFlow
HydroDyn
topic CFD
FOWT
Lattice Boltzmann
OpenFOAM
XFlow
HydroDyn
description The use of simulation models based on potential flow is widespread in the wind industry for the simulation of floating wind turbines. However, these analytical models have shortcomings in correctly representing the behavior of Floating Offshore Wind Turbines (FOWTs) under extreme wind and wave conditions. High fidelity Computational Fluid Dynamics (CFD) simulations aim to develop models where the fluid-structure interaction is more accurately modeled, allowing to correctly predict the behavior of wind turbines and thus to redesign structural components and save costs. In this paper, two different CFD simulation models are developed and compared, including different turbulence models (Reynolds-Averaged Navier-Stokes (RANS) and Large Eddy Simulation (LES)), numerical methodologies (Navier-Stokes and Lattice-Boltzmann method) and mooring models (Quasi-Static and Dynamic). Different free decay Load Cases (LC) are performed in XFlow and OpenFOAM, and the damping ratio and natural period of the system are analyzed with different mooring arrangements (Multi-Point Mooring (MPM) and Single-Point Mooring (SPM)), comparing all results with respect to a potential flow model (HydroDyn). A maximum error of 3.3 % in natural period and 1.6 % error in damping factor is obtained, small enough to validate the results of CFD models. Vorticity is also analyzed to understand the differences between both CFD models. Finally, the stress of the mooring lines is computed, which allows validating the mooring system model implemented in XFlow by means of external functions.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2454/54076
url https://hdl.handle.net/2454/54076
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/Gobierno de Navarra//PC042-043 COSTA
dc.rights.none.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/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:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
instname:Universidad Pública de Navarra
instname_str Universidad Pública de Navarra
reponame_str Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
collection Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
repository.name.fl_str_mv
repository.mail.fl_str_mv
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