Numerical simulation of an array of heaving floating point absorber wave energy converters using openfoam

Brecht Devolder, Pieter Rauwoens, Peter A Troch

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

3 Scopus citations

Abstract

In this paper we use the CFD toolbox OpenFOAM to perform numerical simulations of multiple floating point absorber Wave Energy Converters (WECs) in a numerical wave basin. The two-phase Navier-Stokes fluid solver is coupled with a motion solver to simulate the wave-induced rigid body heave motion. The key of this paper is to extend numerical simulations of a single WEC unit to multiple WECs and to tackle the issues of modelling individual floating objects close to each other in an array lay-out. The developed numerical model is validated with laboratory experiments for free decay tests and for a regular wave train using two or five WECs in the array. For all the simulations presented, a good agreement is found between the numerical and experimental results for the WECs' heave motions, the surge forces on the WECs and the perturbed wave field. As a result, our coupled CFD-motion solver proofs to be a suitable and accurate toolbox for the study of wave-structure interaction problems of multiple floating bodies in an array configuration.

Original languageEnglish (US)
Title of host publication7th International Conference on Computational Methods in Marine Engineering, MARINE 2017
PublisherInternational Center for Numerical Methods in Engineering
Pages777-788
Number of pages12
Volume2017-May
ISBN (Electronic)9788494690983
StatePublished - Jan 1 2017
Externally publishedYes
Event7th International Conference on Computational Methods in Marine Engineering, MARINE 2017 - Nantes, France
Duration: May 15 2017May 17 2017

Other

Other7th International Conference on Computational Methods in Marine Engineering, MARINE 2017
CountryFrance
CityNantes
Period5/15/175/17/17

Keywords

  • Array
  • CFD modelling
  • Experimental validation
  • Floating point absorber
  • Wave energy

ASJC Scopus subject areas

  • Applied Mathematics
  • Ocean Engineering

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  • Cite this

    Devolder, B., Rauwoens, P., & Troch, P. A. (2017). Numerical simulation of an array of heaving floating point absorber wave energy converters using openfoam. In 7th International Conference on Computational Methods in Marine Engineering, MARINE 2017 (Vol. 2017-May, pp. 777-788). International Center for Numerical Methods in Engineering.