Experimental and Numerical Modelling of a Moored, Generic Floating Wave Energy Converter

Guilherme Moura Paredes, Claes Eskilsson, Johannes Palm, Lars Bergdahl, Luis M. Leite, Francisco Taveira-Pinto

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

Experiments of a moored floating cylinder in regular waves have been conducted. The buoy had a mass of 35.3 kg and was moored by a 5.9 m long catenary chain. The motions of the buoy were recorded with an infra-red video system and the tension at the fairlead was measured by a load cell. The experiments are used to validate a fast and simple numerical method for the coupled time-domain analysis of floating wave energy converters in operational conditions. The numerical model uses hp-finite elements with a local discontinuous Galerkin formulation for the solution of the dynamics of the mooring cables and linear potential theory for the solution of the dynamics of the floating bodies. The results of the numerical model show an overall good agreement with experimental data. The dynamic behaviour of the tension at the fairlead is captured well, as well as the motions in in heave and pitch. In surge there are discrepancies.
Original languageEnglish
Title of host publication10th European Wave and Tidal Energy Conference,
Place of PublicationAalborg, Denmark
PublisherTechnical Committee of the European Wave and Tidal Energy Conference
Publication date2013
Publication statusPublished - 2013

Keywords

  • coupled analysis,floating WEC,linear potential theory,mooring cable dynamics,numerical model,physical model,wave energy converter

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    Paredes, G. M., Eskilsson, C., Palm, J., Bergdahl, L., Leite, L. M., & Taveira-Pinto, F. (2013). Experimental and Numerical Modelling of a Moored, Generic Floating Wave Energy Converter. In 10th European Wave and Tidal Energy Conference, Technical Committee of the European Wave and Tidal Energy Conference.