Simulations of moored wave energy converters using OpenFOAM: Implementation and applications

Claes Eskilsson, Johannes Palm, Lars Bergdahl

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

In this paper we present and discuss the use of CFD for coupled mooring analysis of floating wave energy converters. We use the two-phase Navier-Stokes finite volume solver in OpenFOAM and a high-order finite element model for the cable dynamics. The implementation of the coupling is described in some detail and we show validation of the scheme against laboratory data. A comparison between RANS and Euler simulations isolates effects of viscosity and geometric scale for moored point-absorbers, and parametric pitch excitation is demonstrated. The inclusion of power take-off/control follow the same blueprint as the mooring restraint and we illustrate the use of phase control.
Original languageEnglish
Title of host publicationWMTC18 - World Maritime Technology Conference 2018 : Proceedings of the 6th World Maritime Technology Conference
Number of pages9
PublisherSociety of Naval Architects and Marine Engineers at Providence
Publication date2018
Publication statusPublished - 2018
EventWorld Maritime Technology Conference 2018 - Shanghai, China
Duration: 4 Dec 20187 Dec 2018

Conference

ConferenceWorld Maritime Technology Conference 2018
CountryChina
CityShanghai
Period04/12/201807/12/2018

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Bibliographical note

The proceedings is published on a CD

Keywords

  • Wave energy
  • CFD
  • Mooring
  • Control
  • Parametric excitation

Cite this

Eskilsson, C., Palm, J., & Bergdahl, L. (2018). Simulations of moored wave energy converters using OpenFOAM: Implementation and applications. In WMTC18 - World Maritime Technology Conference 2018: Proceedings of the 6th World Maritime Technology Conference Society of Naval Architects and Marine Engineers at Providence.