Measurement of the effect of power absorption in the lee of a wave energy converter

I. G C Ashton, Lars Johanning, Brian Linfoot

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

    Abstract

    Monitoring the effect of floating wave energy converter (WEC) devices on the surrounding wave field will be an important tool for monitoring impacts on the local wave climate and coastlines. Measurement will be hampered by the natural variability of ocean waves and the complex response of WEC devices, causing temporal and spatial variability in the effects. Measurements taken during wave tank tests at MARINTEK are used to analyse the effectiveness of point wave measurements at resolving the influence of an array of WEC on the local wave conditions. The variability of waves is measured in front and in the lee of a device, using spectral analysis to identify changes to the incident wave field due to the operating WEC. The power capture and radiation damping are analysed in order to predict the measured changes. Differences in the wave field across the device are clearly observable in the frequency domain. However, they do not unanimously show a reduction in wave energy in the lee of a device and are not well predicted by measured power capture. Copyright © 2009 by ASME.

    Original languageEnglish
    Title of host publicationProceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering 2009, OMAE2009
    Pages1021-1030
    Number of pages10
    Volume4
    EditionPART B
    Publication statusPublished - 2009
    Event28th International Conference on Ocean, Offshore and Arctic Engineering - Honolulu, HI, United States
    Duration: 31 May 20095 Jun 2009

    Conference

    Conference28th International Conference on Ocean, Offshore and Arctic Engineering
    Abbreviated titleOMAE2009
    CountryUnited States
    CityHonolulu, HI
    Period31/05/095/06/09

    Fingerprint

    Monitoring
    Water waves
    Spectrum analysis
    Damping
    Radiation

    Keywords

    • Wave energy
    • Wave energy impacts
    • Wave measurements
    • Wave tank testing

    Cite this

    Ashton, I. G. C., Johanning, L., & Linfoot, B. (2009). Measurement of the effect of power absorption in the lee of a wave energy converter. In Proceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering 2009, OMAE2009 (PART B ed., Vol. 4, pp. 1021-1030)
    Ashton, I. G C ; Johanning, Lars ; Linfoot, Brian. / Measurement of the effect of power absorption in the lee of a wave energy converter. Proceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering 2009, OMAE2009. Vol. 4 PART B. ed. 2009. pp. 1021-1030
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    abstract = "Monitoring the effect of floating wave energy converter (WEC) devices on the surrounding wave field will be an important tool for monitoring impacts on the local wave climate and coastlines. Measurement will be hampered by the natural variability of ocean waves and the complex response of WEC devices, causing temporal and spatial variability in the effects. Measurements taken during wave tank tests at MARINTEK are used to analyse the effectiveness of point wave measurements at resolving the influence of an array of WEC on the local wave conditions. The variability of waves is measured in front and in the lee of a device, using spectral analysis to identify changes to the incident wave field due to the operating WEC. The power capture and radiation damping are analysed in order to predict the measured changes. Differences in the wave field across the device are clearly observable in the frequency domain. However, they do not unanimously show a reduction in wave energy in the lee of a device and are not well predicted by measured power capture. Copyright {\circledC} 2009 by ASME.",
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    Ashton, IGC, Johanning, L & Linfoot, B 2009, Measurement of the effect of power absorption in the lee of a wave energy converter. in Proceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering 2009, OMAE2009. PART B edn, vol. 4, pp. 1021-1030, 28th International Conference on Ocean, Offshore and Arctic Engineering, Honolulu, HI, United States, 31/05/09.

    Measurement of the effect of power absorption in the lee of a wave energy converter. / Ashton, I. G C; Johanning, Lars; Linfoot, Brian.

    Proceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering 2009, OMAE2009. Vol. 4 PART B. ed. 2009. p. 1021-1030.

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

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    Ashton IGC, Johanning L, Linfoot B. Measurement of the effect of power absorption in the lee of a wave energy converter. In Proceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering 2009, OMAE2009. PART B ed. Vol. 4. 2009. p. 1021-1030