Wave tank experiments on the power capture of a float-type wave energy device with a breakwater

2018 ◽  
Vol 10 (5) ◽  
pp. 054501 ◽  
Author(s):  
Wei Peng ◽  
Rui He ◽  
Jisheng Zhang ◽  
Tiaojian Xu
Keyword(s):  
Wave Energy ◽  
Energy Device ◽  
Wave Tank ◽  
Type Wave ◽  
Power Capture

Nonlinear Time-Domain Simulation of the Heaving-Buoy Type Wave Energy Converter by Using Three-Dimensional Potential Numerical Wave Tank Under Irregular Wave Conditions

2020 ◽  
Author(s):  
Sung-Jae Kim ◽  
Weoncheol Koo ◽  
Moo-Hyun Kim
Keyword(s):  
Wave Energy ◽  
Time Domain ◽  
Three Dimensional ◽  
Wave Energy Converter ◽  
Hydrodynamic Performance ◽  
Numerical Wave Tank ◽  
Energy Converter ◽  
Wave Tank ◽  
Type Wave ◽  
Numerical Wave

Abstract The aim of this paper is to evaluate the hydrodynamic performance of a heaving buoy type wave energy converter (WEC) and power take-off (PTO) system. To simulate the nonlinear behavior of the WEC with PTO system, a three-dimensional potential numerical wave tank (PNWT) was developed. The PNWT is a numerical analysis tool that can accurately reproduce experiments in physical wave tanks. The developed time-domain PNWT utilized the previously developed NWT technique and newly adopted the side wall damping area. The PNWT is based on boundary element method with constant panels. The mixed Eulerian-Lagrangian method (MEL) and acceleration potential approach were adopted to simulate the nonlinear behaviors of free-surface nodes associated with body motions. The PM spectrum as an irregular incident wave condition was applied to the input boundary. A floating or fixed type WEC structure was placed in the center of the computational domain. A hydraulic PTO system composed of a hydraulic cylinder, hydraulic motor and generator was modeled with approximate Coulomb damping force and applied to the WEC system. Using the integrated numerical model of the WEC with PTO system, nonlinear interaction of irregular waves, the WEC structure, and the PTO system were simulated in the time domain. The optimal hydraulic pressure of the PTO condition was predicted. The hydrodynamic performance of the WEC was evaluated by comparing the linear and nonlinear analytical results and highlighted the importance accounting for nonlinear free surfaces.

Wave tank experiments on the power capture of a multi-axis wave energy converter

2015 ◽  
Vol 20 (3) ◽  
pp. 520-529 ◽  
Author(s):  
Dahai Zhang ◽  
Aggidis George ◽  
Yifei Wang ◽  
Xinxing Gu ◽  
Wei Li ◽  
...  
Keyword(s):  
Wave Energy ◽  
Wave Energy Converter ◽  
Energy Converter ◽  
Wave Tank ◽  
Power Capture

scholarly journals The power-capture of a nearshore, modular, flap-type wave energy converter in regular waves

2017 ◽  
Vol 137 ◽  
pp. 394-403 ◽  
Author(s):  
L. Wilkinson ◽  
T.J.T. Whittaker ◽  
P.R. Thies ◽  
S. Day ◽  
D. Ingram
Keyword(s):  
Wave Energy ◽  
Wave Energy Converter ◽  
Regular Waves ◽  
Energy Converter ◽  
Type Wave ◽  
Power Capture

Numerical modelling and wave tank testing of a self-reacting two-body wave energy device

2019 ◽  
Vol 14 (sup1) ◽  
pp. 344-356 ◽  
Author(s):  
Adi Kurniawan ◽  
Matthias Grassow ◽  
Francesco Ferri
Keyword(s):  
Numerical Modelling ◽  
Wave Energy ◽  
Body Wave ◽  
Energy Device ◽  
Wave Tank
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