Introducing wave regeneration by wind in a mild-slope wave propagation model MILDwave, to investigate the wake effects in the lee of a farm of wave energy converters

Vasiliki Stratigaki, Peter Troch, Leen Baelus, Yannick Keppens

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

5 Scopus citations

Abstract

The increasing energy demand, the need to reduce greenhouse gas emissions and the shrinking reserves of fossil fuels have all enhanced the interest in sustainable and renewable energy sources, including wave energy. Many concepts for wave power conversion have been invented. In order to extract a considerable amount of wave power, single Wave Energy Converters (abbreviated as WECs) will have to be arranged in arrays or 'farms' using a particular geometrical layout, comprising large numbers of devices. As a result of the interaction between the WECs within a farm, the overall power absorption is affected. In general, the incident waves are partly reflected, transmitted and absorbed by a single WEC. Also, the wave height behind a large farm of WECs is reduced and this reduction may influence neighbouring farms, other users in the sea or even the coastline (wake effects of a WEC farm). The numerical wave propagation model MILDwave has been recently used to study wake effects and energy absorption of farms of WECs, though without taking into account wave regeneration by wind in the lee of the WEC-farm which can be significant in large distances downwave the WECs. In this paper, the implementation of wave growth due to wind in the hyperbolic mild-slope equations of the wave propagation model, MILDwave is described. Several formulations for the energy input from wind found in literature are considered and implemented. The performance of these formulations in MILDwave is investigated and validated. The modified model MILDwave is then applied for the investigation of the influence of the wind on the wakes in the lee of a farm of wave energy converters.

Original languageEnglish (US)
Title of host publicationASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2011
Pages429-436
Number of pages8
DOIs
StatePublished - Dec 1 2011
Externally publishedYes
EventASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2011 - Rotterdam, Netherlands
Duration: Jun 19 2011Jun 24 2011

Publication series

NameProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Volume5

Other

OtherASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2011
CountryNetherlands
CityRotterdam
Period6/19/116/24/11

ASJC Scopus subject areas

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

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    Stratigaki, V., Troch, P., Baelus, L., & Keppens, Y. (2011). Introducing wave regeneration by wind in a mild-slope wave propagation model MILDwave, to investigate the wake effects in the lee of a farm of wave energy converters. In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2011 (pp. 429-436). (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE; Vol. 5). https://doi.org/10.1115/OMAE2011-49347