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.
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ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering
June 17–22, 2018
Madrid, Spain
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5133-3
PROCEEDINGS PAPER
Floating Moored Oscillating Water Column With Meshless SPH Method
Alejandro J. C. Crespo,
Alejandro J. C. Crespo
Universidade de Vigo, Ourense, Spain
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Matthew Hall,
Matthew Hall
University of Prince Edward Island, Charlottetown, PE, Canada
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José M. Domínguez,
José M. Domínguez
Universidade de Vigo, Ourense, Spain
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Corrado Altomare,
Corrado Altomare
Ghent University, Ghent, Belgium
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Tim Verbrugghe,
Tim Verbrugghe
Ghent University, Ghent, Belgium
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Vasiliki Stratigaki,
Vasiliki Stratigaki
Ghent University, Ghent, Belgium
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Moncho Gómez-Gesteira
Moncho Gómez-Gesteira
Universidade de Vigo, Ourense, Spain
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Alejandro J. C. Crespo
Universidade de Vigo, Ourense, Spain
Matthew Hall
University of Prince Edward Island, Charlottetown, PE, Canada
José M. Domínguez
Universidade de Vigo, Ourense, Spain
Corrado Altomare
Ghent University, Ghent, Belgium
Minghao Wu
Ghent University, Ghent, Belgium
Tim Verbrugghe
Ghent University, Ghent, Belgium
Vasiliki Stratigaki
Ghent University, Ghent, Belgium
Peter Troch
Ghent University, Ghent, Belgium
Moncho Gómez-Gesteira
Universidade de Vigo, Ourense, Spain
Paper No:
OMAE2018-77313, V11BT12A053; 10 pages
Published Online:
September 25, 2018
Citation
Crespo, AJC, Hall, M, Domínguez, JM, Altomare, C, Wu, M, Verbrugghe, T, Stratigaki, V, Troch, P, & Gómez-Gesteira, M. "Floating Moored Oscillating Water Column With Meshless SPH Method." Proceedings of the ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. Volume 11B: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering. Madrid, Spain. June 17–22, 2018. V11BT12A053. ASME. https://doi.org/10.1115/OMAE2018-77313
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