RT Journal Article
T1 Efficiency and survivability analysis of a point-absorber wave energy converter using DualSPHysics
A1 Ropero Giralda, Pablo
A1 Cabrera Crespo, Alejandro Jacobo
A1 Tagliafierro, Bonaventura
A1 Altomare, Corrado
A1 Domínguez Alonso, José Manuel
A1 Gómez Gesteira, Ramon
A1 Viccione, Giacomo
K1 2204 Física de Fluidos
K1 2510.07 Oceanografía Física
K1 3305.06 Ingeniería Civil
K1 3305.11 Puertos
AB Smoothed Particle Hydrodynamics (SPH) method is used here to simulate a heaving point-absorber with a Power Take-Off system (PTO). The SPH-based code DualSPHysics is first validated with experimental data of regular waves interacting with the point-absorber. Comparison between the numerical and experimental heave displacement and velocity of the device show a good agreement for a given regular wave condition and different configurations of the PTO system. The validated numerical tool is then employed to investigate the efficiency of the proposed system. The efficiency, which is defined here as the ratio between the power absorbed by the point-absorber and its theoretical maximum, is obtained for different wave conditions and several arrangements of the PTO. Finally, the effects of highly energetic sea states on the buoy are examined through alternative configurations of the initial system. A survivability study is performed by computing the horizontal and vertical forces exerted by focused waves on the wave energy converter (WEC). The yield criterion is used to determine that submerging the heaving buoy at a certain depth is the most effective strategy to reduce the loads acting on the WEC and its structure, while keeping the WEC floating at still water level is the worst-case scenario.
PB Renewable Energy
SN 09601481
YR 2020
FD 2020-12
LK http://hdl.handle.net/11093/5766
UL http://hdl.handle.net/11093/5766
LA eng
NO Renewable Energy, 162, 1763-1776 (2020)
NO Agencia Estatal de Investigación | Ref. ENE2016-75074-C2-1-R
DS Investigo
RD 23-ene-2025