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Numerical simulation of a heave-only floating OWC (oscillating water column) device

Author

Listed:
  • Luo, Yongyao
  • Wang, Zhengwei
  • Peng, Guangjie
  • Xiao, Yexiang
  • Zhai, Liming
  • Liu, Xin
  • Zhang, Qi

Abstract

This paper reports on the development of a two-dimensional, fully nonlinear CFD (Computational Fluid Dynamics) model with dynamic mesh to analyze the performance of a heave-only floating OWC (oscillating water column) device. The model was validated against previous experimental, analytical and numerical results on wave–air–structure interaction of others. The results showed that both the turbine pneumatic damping coefficient and mooring spring elasticity coefficient have a significant effect on the power capture efficiency. The heave-free floating OWC device has two resonance frequencies: natural frequency of OWC and natural frequency of chamber. The frequency band width of high efficiency can be adjusted by turbine damping coefficient and stiffness of mooring spring so as to harness more energy from marine environment with varied wave frequencies.

Suggested Citation

  • Luo, Yongyao & Wang, Zhengwei & Peng, Guangjie & Xiao, Yexiang & Zhai, Liming & Liu, Xin & Zhang, Qi, 2014. "Numerical simulation of a heave-only floating OWC (oscillating water column) device," Energy, Elsevier, vol. 76(C), pages 799-806.
    • Handle: RePEc:eee:energy:v:76:y:2014:i:c:p:799-806
    DOI: 10.1016/j.energy.2014.08.079
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    References listed on IDEAS

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    1. Teixeira, Paulo R.F. & Davyt, Djavan P. & Didier, Eric & Ramalhais, Rubén, 2013. "Numerical simulation of an oscillating water column device using a code based on Navier–Stokes equations," Energy, Elsevier, vol. 61(C), pages 513-530.
    2. El Marjani, A. & Castro Ruiz, F. & Rodriguez, M.A. & Parra Santos, M.T., 2008. "Numerical modelling in wave energy conversion systems," Energy, Elsevier, vol. 33(8), pages 1246-1253.
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    Cited by:

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    4. Falcão, António F.O. & Henriques, João C.C., 2016. "Oscillating-water-column wave energy converters and air turbines: A review," Renewable Energy, Elsevier, vol. 85(C), pages 1391-1424.
    5. Opoku, F. & Uddin, M.N. & Atkinson, M., 2023. "A review of computational methods for studying oscillating water columns – the Navier-Stokes based equation approach," Renewable and Sustainable Energy Reviews, Elsevier, vol. 174(C).
    6. Ning, De-Zhi & Shi, Jin & Zou, Qing-Ping & Teng, Bin, 2015. "Investigation of hydrodynamic performance of an OWC (oscillating water column) wave energy device using a fully nonlinear HOBEM (higher-order boundary element method)," Energy, Elsevier, vol. 83(C), pages 177-188.
    7. Gomes, R.P.F. & Henriques, J.C.C. & Gato, L.M.C. & Falcão, A.F.O., 2020. "Time-domain simulation of a slack-moored floating oscillating water column and validation with physical model tests," Renewable Energy, Elsevier, vol. 149(C), pages 165-180.
    8. Elhanafi, Ahmed & Macfarlane, Gregor & Fleming, Alan & Leong, Zhi, 2017. "Experimental and numerical investigations on the hydrodynamic performance of a floating–moored oscillating water column wave energy converter," Applied Energy, Elsevier, vol. 205(C), pages 369-390.
    9. Dezhi Ning & Rongquan Wang & Chongwei Zhang, 2017. "Numerical Simulation of a Dual-Chamber Oscillating Water Column Wave Energy Converter," Sustainability, MDPI, vol. 9(9), pages 1-12, September.
    10. Penalba, Markel & Giorgi, Giussepe & Ringwood, John V., 2017. "Mathematical modelling of wave energy converters: A review of nonlinear approaches," Renewable and Sustainable Energy Reviews, Elsevier, vol. 78(C), pages 1188-1207.
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    12. Wang, Chen & Zhang, Yongliang & Deng, Zhengzhi, 2021. "Theoretical analysis on hydrodynamic performance for a dual-chamber oscillating water column device with a pitching front lip-wall," Energy, Elsevier, vol. 226(C).
    13. Wang, Chen & Zhang, Yongliang & Deng, Zhengzhi, 2022. "Hydrodynamic performance of a heaving oscillating water column device restrained by a spring-damper system," Renewable Energy, Elsevier, vol. 187(C), pages 331-346.
    14. Ahn, Soo-Hwang & Xiao, Yexiang & Wang, Zhengwei & Zhou, Xuezhi & Luo, Yongyao, 2017. "Performance prediction of a prototype tidal power turbine by using a suitable numerical model," Renewable Energy, Elsevier, vol. 113(C), pages 293-302.
    15. Wang, Chen & Zhang, Yongliang, 2021. "Hydrodynamic performance of an offshore Oscillating Water Column device mounted over an immersed horizontal plate: A numerical study," Energy, Elsevier, vol. 222(C).
    16. Wang, Chen & Zhang, Yongliang, 2021. "Numerical investigation on the wave power extraction for a 3D dual-chamber oscillating water column system composed of two closely connected circular sub-units," Applied Energy, Elsevier, vol. 295(C).
    17. Singh, Uddish & Abdussamie, Nagi & Hore, Jack, 2020. "Hydrodynamic performance of a floating offshore OWC wave energy converter: An experimental study," Renewable and Sustainable Energy Reviews, Elsevier, vol. 117(C).
    18. Chen Wang & Zhengzhi Deng & Pinjie Wang & Yu Yao, 2019. "Wave Power Extraction from a Dual Oscillating-Water- Column System Composed of Heave-Only and Onshore Units," Energies, MDPI, vol. 12(9), pages 1-22, May.
    19. Zhu, Guixun & Samuel, John & Zheng, Siming & Hughes, Jason & Simmonds, David & Greaves, Deborah, 2023. "Numerical investigation on the hydrodynamic performance of a 2D U-shaped Oscillating Water Column wave energy converter," Energy, Elsevier, vol. 274(C).
    20. Ahn, Soo-Hwang & Xiao, Yexiang & Wang, Zhengwei & Zhou, Xuezhi & Luo, Yongyao, 2017. "Numerical prediction on the effect of free surface vortex on intake flow characteristics for tidal power station," Renewable Energy, Elsevier, vol. 101(C), pages 617-628.
    21. Minghao Wu & Vasiliki Stratigaki & Peter Troch & Corrado Altomare & Tim Verbrugghe & Alejandro Crespo & Lorenzo Cappietti & Matthew Hall & Moncho Gómez-Gesteira, 2019. "Experimental Study of a Moored Floating Oscillating Water Column Wave-Energy Converter and of a Moored Cubic Box," Energies, MDPI, vol. 12(10), pages 1-20, May.
    22. Shi, Guangtai & Liu, Zongku & Xiao, Yexiang & Wang, Zhengwei & Luo, Yongyao & Luo, Kun, 2020. "Energy conversion characteristics of multiphase pump impeller analyzed based on blade load spectra," Renewable Energy, Elsevier, vol. 157(C), pages 9-23.

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