Version 1
: Received: 7 January 2019 / Approved: 9 January 2019 / Online: 9 January 2019 (07:18:03 CET)
How to cite:
Heras, P.; Thomas, S.; Kramer, M.; Kofoed, J.P. Numerical and Experimental Modelling of a Wave Energy Converter Pitching in Close Proximity to a Fixed Structure. Preprints2019, 2019010078. https://doi.org/10.20944/preprints201901.0078.v1
Heras, P.; Thomas, S.; Kramer, M.; Kofoed, J.P. Numerical and Experimental Modelling of a Wave Energy Converter Pitching in Close Proximity to a Fixed Structure. Preprints 2019, 2019010078. https://doi.org/10.20944/preprints201901.0078.v1
Heras, P.; Thomas, S.; Kramer, M.; Kofoed, J.P. Numerical and Experimental Modelling of a Wave Energy Converter Pitching in Close Proximity to a Fixed Structure. Preprints2019, 2019010078. https://doi.org/10.20944/preprints201901.0078.v1
APA Style
Heras, P., Thomas, S., Kramer, M., & Kofoed, J.P. (2019). Numerical and Experimental Modelling of a Wave Energy Converter Pitching in Close Proximity to a Fixed Structure. Preprints. https://doi.org/10.20944/preprints201901.0078.v1
Chicago/Turabian Style
Heras, P., Morten Kramer and Jens Peter Kofoed. 2019 "Numerical and Experimental Modelling of a Wave Energy Converter Pitching in Close Proximity to a Fixed Structure" Preprints. https://doi.org/10.20944/preprints201901.0078.v1
Abstract
This paper presents a hydrodynamic numerical model for a pitching wave energy converter (WEC). The model uses potential wave theory and is based on Cummins' equation, with nonlinear hydrostatic restoring stiffness and excitation forces based on instantaneous body position and water surface elevation. The numerical model can include non-linear forces, like quadratic drag, power-take-off and other forces that may account for unknown viscous effects observed in experiments. The paper discusses the applicability and limitations of the code and presents the cases where assumptions and simplifications can be made. The goal is to conclude on the simplest, yet accurate, version of the model by evaluating its accuracy using experimental data. The case study for validation is Floating Power Plant's (FPP's) WEC [1]. In the full-scale commercial project, FPP's device consists of a semisubmersible platform hosting a wind turbine (5-8MW) and 4 WECs, each one connected to the platform by a rotation shaft. Due to the configuration of the platform, strong interactions occur between the WECs and the structure, as they are very closely spaced. In order to validate a numerical model able to simulate these hydrodynamic interactions, wave basin experiments with a similar but simplified setup were performed.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
