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Accurate numerical simulation of a high solidity Wells turbine

Author

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  • Torresi, M.
  • Camporeale, S.M.
  • Strippoli, P.D.
  • Pascazio, G.

Abstract

This paper provides an accurate description of the steady three-dimensional flow-field in a high solidity Wells turbine to be used in an oscillatory water column (OWC) device for wave energy conversion. The analysis has been performed by solving numerically the incompressible Navier–Stokes equations in a non-inertial reference frame rotating with the turbine. Turbulence effects are taken into account via a Reynolds-average approach, the turbulent stresses being evaluated by means of the Spalart–Allmaras model. Using a very fine mesh, a quite good agreement with experimental data has been obtained in terms of efficiency, torque, and total pressure drop, at different flow rates. Moreover, the tip clearance has been properly modeled and the effect of the tip-gap on the turbine performance has been analyzed in details.

Suggested Citation

  • Torresi, M. & Camporeale, S.M. & Strippoli, P.D. & Pascazio, G., 2008. "Accurate numerical simulation of a high solidity Wells turbine," Renewable Energy, Elsevier, vol. 33(4), pages 735-747.
    • Handle: RePEc:eee:renene:v:33:y:2008:i:4:p:735-747
    DOI: 10.1016/j.renene.2007.04.006
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    References listed on IDEAS

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    Cited by:

    1. Stefanizzi, Michele & Camporeale, Sergio Mario & Torresi, Marco, 2023. "Experimental investigation of a Wells turbine under dynamic stall conditions for wave energy conversion," Renewable Energy, Elsevier, vol. 214(C), pages 369-382.
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    6. Luana Gurnari & Pasquale G. F. Filianoti & Marco Torresi & Sergio M. Camporeale, 2020. "The Wave-to-Wire Energy Conversion Process for a Fixed U-OWC Device," Energies, MDPI, vol. 13(1), pages 1-25, January.
    7. Kotb, Ahmed T.M. & Nawar, Mohamed A.A. & Attai, Youssef A. & Mohamed, Mohamed H., 2022. "Performance assessment of a modified wells turbine using an integrated casing groove and Gurney flap design for wave energy conversion," Renewable Energy, Elsevier, vol. 197(C), pages 627-642.
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    9. Ansarifard, Nazanin & Kianejad, S.S. & Fleming, Alan & Henderson, Alan & Chai, Shuhong, 2020. "Design optimization of a purely radial turbine for operation in the inhalation mode of an oscillating water column," Renewable Energy, Elsevier, vol. 152(C), pages 540-556.
    10. Halder, Paresh & Samad, Abdus & Kim, Jin-Hyuk & Choi, Young-Seok, 2015. "High performance ocean energy harvesting turbine design–A new casing treatment scheme," Energy, Elsevier, vol. 86(C), pages 219-231.
    11. Fares M’zoughi & Payam Aboutalebi & Izaskun Garrido & Aitor J. Garrido & Manuel De La Sen, 2021. "Complementary Airflow Control of Oscillating Water Columns for Floating Offshore Wind Turbine Stabilization," Mathematics, MDPI, vol. 9(12), pages 1-15, June.
    12. Das, Tapas K. & Samad, Abdus, 2020. "Influence of stall fences on the performance of Wells turbine," Energy, Elsevier, vol. 194(C).
    13. Halder, Paresh & Samad, Abdus & Thévenin, Dominique, 2017. "Improved design of a Wells turbine for higher operating range," Renewable Energy, Elsevier, vol. 106(C), pages 122-134.
    14. Valizadeh, Reza & Abbaspour, Madjid & Rahni, Mohammad Taeibi, 2020. "A low cost Hydrokinetic Wells turbine system for oceanic surface waves energy harvesting," Renewable Energy, Elsevier, vol. 156(C), pages 610-623.
    15. Geng, Kaihe & Yang, Ce & Zhao, Ben & Zhao, Wei & Gao, Jianbing & Hu, Chenxing & Zhang, Hanzhi & Wu, Wangxia, 2023. "Residual circulation budget analysis in a Wells turbine with leading-edge micro-cylinders," Renewable Energy, Elsevier, vol. 216(C).
    16. Kotb, Ahmed T.M. & Nawar, Mohamed A.A. & Attai, Youssef A. & Mohamed, Mohamed H., 2023. "Performance enhancement of a Wells turbine using CFD-optimization algorithms coupling," Energy, Elsevier, vol. 282(C).
    17. Alberdi, Mikel & Amundarain, Modesto & Garrido, Aitor & Garrido, Izaskun, 2012. "Neural control for voltage dips ride-through of oscillating water column-based wave energy converter equipped with doubly-fed induction generator," Renewable Energy, Elsevier, vol. 48(C), pages 16-26.
    18. Geng, Kaihe & Yang, Ce & Hu, Chenxing & Li, Yanzhao & Yang, Changmao, 2022. "Numerical investigation on the loss audit of Wells turbine with exergy analysis," Renewable Energy, Elsevier, vol. 189(C), pages 273-287.
    19. Mahboubidoust, A. & Ramiar, A., 2017. "Investigation of DBD plasma actuator effect on the aerodynamic and thermodynamic performance of high solidity Wells turbine," Renewable Energy, Elsevier, vol. 112(C), pages 347-364.
    20. Amundarain, Modesto & Alberdi, Mikel & Garrido, Aitor J. & Garrido, Izaskun & Maseda, Javier, 2010. "Wave energy plants: Control strategies for avoiding the stalling behaviour in the Wells turbine," Renewable Energy, Elsevier, vol. 35(12), pages 2639-2648.

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