Floating moored oscillating water column with meshless Sph method

Alejandro J.C. Crespo, Matthew Hall, José M. Domínguez, Corrado Altomare, Minghao Wu, Tim Verbrugghe, Vasiliki Stratigaki, Peter Troch, Moncho Gómez-Gesteira

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

5 Scopus citations

Abstract

The meshless method called Smoothed Particle Hydrodynamics (SPH) is here proposed to simulate floating Oscillating Water Column (OWC) Wave Energy Converters (WECs). The SPH-based DualSPHysics code is coupled with MoorDyn, an open-source dynamic mooring line model. The coupled model is first validated using laboratory tests of a floating solid box moored to the wave flume bottom using four mooring lines interacting with regular waves. The numerical free-surface elevation at different locations, the motions of the floating solid box (heave, surge and pitch) and the tensions in the mooring lines are compared with the experimental data. Secondly, the coupled model is employed to simulate a floating OWC WEC moored to the sea bottom, while numerical results are also validated using data from physical modelling. The numerical results are promising to simulate floating OWC WECs. However, some discrepancies are noticed since the simulations presented in this work only consider a single-phase (water) so the full OWC WEC behaviour is only partially reproduced. Nevertheless, considering the aforementioned limitations, DualSPHysics can be used at this stage as complementary tool to physical modelling for a preliminary design of floating wave energy converters.

Original languageEnglish (US)
Title of host publicationHonoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791851333
DOIs
StatePublished - 2018
Externally publishedYes
EventASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2018 - Madrid, Spain
Duration: Jun 17 2018Jun 22 2018

Publication series

NameProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Volume11B

Other

OtherASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2018
CountrySpain
CityMadrid
Period6/17/186/22/18

Keywords

  • Mooring dynamics
  • OWC
  • SPH model
  • Wave energy

ASJC Scopus subject areas

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

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