Development of a free heaving OWC model with non-linear PTO interaction

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dc.check.date2019-10-12
dc.check.infoAccess to this article is restricted for 24 months after publication by request of the publisher.en
dc.contributor.authorO'Connell, Ken
dc.contributor.authorThiebaut, Florent
dc.contributor.authorKelly, Ger
dc.contributor.authorCashman, Andrew
dc.contributor.funderIrish Research Councilen
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2018-04-20T09:12:40Z
dc.date.available2018-04-20T09:12:40Z
dc.date.issued2017-10-12
dc.date.updated2018-04-20T08:44:46Z
dc.description.abstractThis paper presents the development of a Computational Fluid Dynamics (CFD) model for a free heaving Oscillating Water Column (OWC) spar buoy with non-linear Power Take Off (PTO). Firstly, a freely heaving barge was applied to a 2D Numerical Wave Tank (NWT), used to validate a 1 Degree Of Freedom (DOF) modelling methodology. Multiple sets of regular waves were used to assess the heave response compared to previous experimental and numerical studies. In parallel, the NWT was extended to 3D where analyses of incident waves have been conducted to ensure accurate waves are portrayed. A PTO boundary condition was created to replicate a non-linear impulse turbine, typically simulated by an orifice plate in scaled models. The PTO boundary was compared and validated using experimental data. Finally, a comprehensive system comprising of the 3D NWT, 1DOF set-up and non-linear PTO allowed the development of a heave-only OWC spar buoy model with a non-linear PTO. Experiments completed by UCC MaREI centre in LIR-NOTF ocean wave basin under FP7 MARINET project is detailed and used to validate the comprehensive model. A range of regular waves were applied and responses of heave and chamber pressures were compared to experimental data, which showed excellent correlation.en
dc.description.sponsorshipIrish Research Council (GOIPG/2013/1382)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationO'Connell, K., Thiebaut, F., Kelly, G. and Cashman, A. (2018) 'Development of a free heaving OWC model with non-linear PTO interaction', Renewable Energy, 117, pp.108-115. doi:10.1016/j.renene.2017.10.027en
dc.identifier.doi10.1016/j.renene.2017.10.027
dc.identifier.endpage115en
dc.identifier.issn0960-1481
dc.identifier.journaltitleRenewable Energyen
dc.identifier.startpage108en
dc.identifier.urihttps://hdl.handle.net/10468/5833
dc.identifier.volume117en
dc.language.isoenen
dc.publisherElsevier B.V.en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2302/IE/Marine Renewable Energy Ireland (MaREI) - The SFI Centre for Marine Renewable Energy Research/en
dc.rights© 2017, Elsevier Ltd. All rights reserved.This manuscript version is made available under the CC-BY-NC-ND 4.0 license.en
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectComputational fluid dynamicsen
dc.subjectNumerical wave tanken
dc.subjectNWTen
dc.subjectWave energy converteren
dc.subjectWECen
dc.subjectFreely heaving oscillating water columnen
dc.subjectCFDen
dc.subjectOWCen
dc.titleDevelopment of a free heaving OWC model with non-linear PTO interactionen
dc.typeArticle (peer-reviewed)en
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