Hydrodynamic behavior of overtopping wave energy converters built in sea defense structures

Lander Victor, Jens Peter Kofoed, Peter Troch

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

Abstract

Many sea defense structures need to be adapted to the rising sea water level and changing wave climate due to global warming. The accordingly required investments open perspectives for wave energy converters (WECs) - that are built as part of the sea defense structures - to become economically viable. In this paper the average overtopping discharges q of overtopping wave energy converters built in sea defense structures are studied. Physical model tests with this type of devices have been carried out in a wave flume leading to experimentally determined values for the average overtopping discharge q. These experimental data are compared with predicted average overtopping discharges using existing empirical formulae from literature - derived mainly for sea defense structures. Overtopping WECs have small relative crest freeboard heights and smooth slopes to maximize overtopping, which is contradictive to the basic role of sea defense structures. As a consequence, the experimentally achieved average overtopping discharges are situated in a range that is not well covered by the existing traditional prediction formulae. The presented results for linear-slope overtopping WECs fill the gap between those for smooth dikes and those for plain vertical walls. The overtopping behavior in that particular range is discussed in this paper.

Original languageEnglish (US)
Title of host publicationASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2010
Pages405-414
Number of pages10
DOIs
StatePublished - Dec 1 2010
Externally publishedYes
EventASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2010 - Shanghai, China
Duration: Jun 6 2010Jun 11 2010

Publication series

NameProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Volume3

Other

OtherASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2010
CountryChina
CityShanghai
Period6/6/106/11/10

ASJC Scopus subject areas

  • Ocean Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

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  • Cite this

    Victor, L., Kofoed, J. P., & Troch, P. (2010). Hydrodynamic behavior of overtopping wave energy converters built in sea defense structures. In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2010 (pp. 405-414). (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE; Vol. 3). https://doi.org/10.1115/OMAE2010-20372