Next Article in Journal
Multi-Objective Load Dispatch Control of Biomass Heat and Power Cogeneration Based on Economic Model Predictive Control
Next Article in Special Issue
Ocean Energy Systems Wave Energy Modeling Task 10.4: Numerical Modeling of a Fixed Oscillating Water Column
Previous Article in Journal
Critical Review of EMC Standards for the Measurement of Radiated Electromagnetic Emissions from Transit Line and Rolling Stock
Previous Article in Special Issue
Highly Accurate Experimental Heave Decay Tests with a Floating Sphere: A Public Benchmark Dataset for Model Validation of Fluid–Structure Interaction
Article

Modelling a Heaving Point-Absorber with a Closed-Loop Control System Using the DualSPHysics Code

1
Environmental Physics Laboratory (EPhysLab), CIM-UVIGO, Universidade de Vigo, 32004 Ourense, Spain
2
Sandia National Laboratories, Albuquerque, NM 87123, USA
3
Department of Civil Engineering, Università degli Studi di Salerno, 84084 Fisciano, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Duarte Valério
Energies 2021, 14(3), 760; https://doi.org/10.3390/en14030760
Received: 29 December 2020 / Revised: 19 January 2021 / Accepted: 25 January 2021 / Published: 1 February 2021
The present work addresses the need for an efficient, versatile, accurate and open-source numerical tool to be used during the design stage of wave energy converters (WECs). The device considered here is the heaving point-absorber developed and tested by Sandia National Laboratories. The smoothed particle hydrodynamics (SPH) method, as implemented in DualSPHysics, is proposed since its meshless approach presents some important advantages when simulating floating devices. The dynamics of the power take-off system are also modelled by coupling DualSPHysics with the multi-physics library Project Chrono. A satisfactory matching between experimental and numerical results is obtained for: (i) the heave response of the device when forced via its actuator; (ii) the vertical forces acting on the fixed device under regular waves and; (iii) the heave response of the WEC under the action of both regular waves and the actuator force. This proves the ability of the numerical approach proposed to simulate accurately the fluid–structure interaction along with the WEC’s closed-loop control system. In addition, radiation models built from the experimental and WAMIT results are compared with DualSPHysics by plotting the intrinsic impedance in the frequency domain, showing that the SPH method can be also employed for system identification. View Full-Text
Keywords: wave energy converter; point absorber; numerical modelling; computational fluid dynamics; smoothed particles hydrodynamics; DualSPHysics; closed-loop control wave energy converter; point absorber; numerical modelling; computational fluid dynamics; smoothed particles hydrodynamics; DualSPHysics; closed-loop control
Show Figures

Figure 1

MDPI and ACS Style

Ropero-Giralda, P.; Crespo, A.J.C.; Coe, R.G.; Tagliafierro, B.; Domínguez, J.M.; Bacelli, G.; Gómez-Gesteira, M. Modelling a Heaving Point-Absorber with a Closed-Loop Control System Using the DualSPHysics Code. Energies 2021, 14, 760. https://doi.org/10.3390/en14030760

AMA Style

Ropero-Giralda P, Crespo AJC, Coe RG, Tagliafierro B, Domínguez JM, Bacelli G, Gómez-Gesteira M. Modelling a Heaving Point-Absorber with a Closed-Loop Control System Using the DualSPHysics Code. Energies. 2021; 14(3):760. https://doi.org/10.3390/en14030760

Chicago/Turabian Style

Ropero-Giralda, Pablo, Alejandro J.C. Crespo, Ryan G. Coe, Bonaventura Tagliafierro, José M. Domínguez, Giorgio Bacelli, and Moncho Gómez-Gesteira. 2021. "Modelling a Heaving Point-Absorber with a Closed-Loop Control System Using the DualSPHysics Code" Energies 14, no. 3: 760. https://doi.org/10.3390/en14030760

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop