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dc.contributor.authorPenalba, Markel
dc.contributor.otherGiorgi, Giuseppe
dc.contributor.otherGomes, Rui P.F.
dc.date.accessioned2022-11-11T15:56:27Z
dc.date.available2022-11-11T15:56:27Z
dc.date.issued2021
dc.identifier.issn2706-6940en
dc.identifier.otherhttps://katalogoa.mondragon.edu/janium-bin/janium_login_opac.pl?find&ficha_no=166834en
dc.identifier.urihttps://hdl.handle.net/20.500.11984/5844
dc.description.abstractIn the wave energy conversion field, simulation tools are crucial for effective converter and controller design, but are often prone to become very casespecific, in both structure and parameter selection. This is due to majorly different working principles and diverse importance of nonlinear effects, at times requiring adhoc modelling approaches. To tackle this challenge, WECSim (Wave Energy Converter SIMulator) was born from the National Renewable Energy Laboratory (NREL) and Sandia National Laboratories, providing a unique simulation platform for all WECs. Nonlinearities related to timevarying wetted surface, especially important in floating WECs, are included in WEC-Sim through a mesh-based computation of nonlinear Froude-Krylov forces. Virtually arbitrary geometries can be considered, thanks to the discretized representation of wetted surfaces, at the price of a significant increase in computational burden. This paper considers a time-effective alternative, implemented in the open-source toolbox called NLFK4ALL, applicable to the popular and wide family of axisymmetric floaters. The Spar-buoy floating oscillating water column device is considered, particularly challenging due to a submerged volume composed of several different sections. The accuracy of WEC-Sim and NLFK4ALL is verified by a preliminary cross-comparison, using independent methods to compute virtually same effects. Fixed-body numerical experiments are used to quantify nonlinearities and compare not only he accuracy, but also the computation burden. Results show that both methods provide almost identical results, although WEC-Sim doubles computational requirements.en
dc.language.isoengen
dc.publisherEWTECen
dc.rights© 2021 EWTECen
dc.subjectWave energy convertersen
dc.subjectNonlinear Froude-Krylov forceen
dc.subjectSpar-buoy oscillatingen
dc.titleCode-to-code nonlinear hydrodynamic modelling verification for wave energy converters: Wec-sim vs. nlfk4allen
dcterms.accessRightshttp://purl.org/coar/access_right/c_abf2en
dcterms.sourceProceedings of the European Wave and Tidal Energy Conferenceen
local.contributor.groupMecánica de fluidoses
local.description.peerreviewedtrueen
local.description.publicationfirstpage1971-1en
local.description.publicationlastpage1971-7en
local.contributor.otherinstitutionhttps://ror.org/00bgk9508es
local.contributor.otherinstitutionhttps://ror.org/01c27hj86es
oaire.format.mimetypeapplication/pdf
oaire.file$DSPACE\assetstore
oaire.resourceTypehttp://purl.org/coar/resource_type/c_c94fen
oaire.versionhttp://purl.org/coar/version/c_ab4af688f83e57aaen


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