A coupled hydrodynamic-structural model of the M4 wave energy converter

R. Eatock Taylor, Paul Taylor, P. K. Stansby

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

A method is developed for modelling wave energy converters consisting of floats connected by slender structural elements. The hydrodynamic and structural dynamic analyses are separated in a two-stage process, though the model is fully coupled. The method of dynamic substructuring is used to achieve this separation. The linear diffraction/radiation problem is solved with a finite element idealisation for axisymmetric floats, and drag forces are incorporated by equivalent linearization. Results for a planar representation of the M4 device, and comparisons of theory and experiments undertaken for two scale models tested in regular and random waves, confirm the validity of the theoretical approach. A series of parametric studies is performed to clarify the important physical variables, including natural periods, the ratio of a characteristic length of the device to the wave length, and power take-off.

Original languageEnglish
Pages (from-to)77-96
Number of pages20
JournalJournal of Fluids and Structures
Volume63
DOIs
Publication statusPublished - 1 May 2016
Externally publishedYes

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