Primary wave energy conversions of oscillating water columns

dc.contributor.authorSheng, Wanan
dc.contributor.authorAlcorn, Raymond
dc.contributor.authorLewis, Anthony
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2016-06-02T14:22:34Z
dc.date.available2016-06-02T14:22:34Z
dc.date.issued2013-09
dc.date.updated2015-01-20T15:34:14Z
dc.description.abstractThis paper presents a study on the numerical simulation of the primary wave energy conversion in the oscillating water column (OWC) wave energy converters (WECs). The new proposed numerical approach consists of three major components: potential flow analysis for the conventional hydrodynamic parameters, such as added mass, damping coefficients, restoring force coefficients and wave excitations; the thermodynamic analysis of the air in the air chamber, which is under the assumptions of the given power take-off characteristics and an isentropic process of air flow. In the formulation, the air compressibility and its effects have been included; and a time-domain analysis by combining the linear potential flow and the thermodynamics of the air flow in the chamber, in which the hydrodynamics and thermodynamics/aerodynamics have been coupled together by the force generated by the pressurised and de-pressurised air in the air chamber, which in turn has effects on the motions of the structure and the internal water surface. As an example, the new developed approach has been applied to a fixed OWC device. The comparisons of the measured data and the simulation results show the new method is very capable of predicting the performance of the OWC devices.en
dc.description.sponsorshipScience Foundation Ireland (Charles Parsons Award at Hydraulics and Maritime Research Centre (HMRC)).en
dc.description.statusPeer revieweden
dc.description.urihttp://www.ewtec.org/conferences/ewtec-2013/en
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationSheng, W., Alcorn, R. and Lewis, A. (2013) 'Primary wave energy conversions of oscillating water columns', Proceedings of 10th European wave and tidal energy conference, 2-5 September, Aalborg University, Denmark.en
dc.identifier.issn2309-1983
dc.identifier.urihttps://hdl.handle.net/10468/2678
dc.language.isoenen
dc.publisherEuropean Wave and Tidal Energy Conferenceen
dc.relation.ispartofProceedings of 10th European Wave and Tidal Energy Conference, 2-5th Sep 2013, Aalborg, Denmark.
dc.relation.urihttp://www.ewtec.org/wp-content/uploads/2014/02/EWTEC2013_Contents.pdf
dc.rights© 2013 European Wave and Tidal Energy Conferenceen
dc.subjectWave energy converteren
dc.subjectOscillating water columnen
dc.subjectAir compressibilityen
dc.subjectPower take-offen
dc.titlePrimary wave energy conversions of oscillating water columnsen
dc.typeConference itemen
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