Wave spectral bandwidth as a measure of available wave power

George H. Smith, Vengatesan Venugopal, Jack Fasham

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    9 Citations (Scopus)

    Abstract

    A key requirement in the description of the performance of a wave energy converter is how the efficiency of power capture changes with the properties of the sea. This paper examines the effect of two generic power transfer functions (PTF) on power production from six simulated wave spectra. These were chosen to represent a series of wind, wind-swell mixed and swell dominated seas. The spread in energy within the sea state as defined by a variety of bandwidth parameters was examined to determine if there was a correlation between the width of the transfer function and the sea bandwidth. It was found that, for the 'constant' height PTF, the bandwidth parameter Bb (calculated using zeroth, minus-one and minus-two spectral moments) provided the best correlation. Customary bandwidths s and v performed poorly. When the PTF was allowed to vary in height as well as width there was little improvement in correlation from the un-scaled results. Copyright © 2006 by ASME.

    Original languageEnglish
    Title of host publicationProceedings of 25TH International Conference on Offshore Mechanics and Arctic Engineering, OMAE 2006
    Volume2006
    Publication statusPublished - 2006
    Event25th International Conference on Offshore Mechanics and Arctic Engineering 2006 - Hamburg, Germany
    Duration: 4 Jun 20069 Jun 2006

    Conference

    Conference25th International Conference on Offshore Mechanics and Arctic Engineering 2006
    Abbreviated titleOMAE 2006
    CountryGermany
    CityHamburg
    Period4/06/069/06/06

    Keywords

    • Spectral bandwidth
    • Tuning
    • Wave energy

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