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Impact of tapered leading-edge micro-cylinder on the performance of wells turbine for wave energy conversion: CFD-optimization algorithms coupling study

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  • Kotb, Ahmed T.M.
  • Nawar, Mohamed A.A.
  • Attai, Youssef A.
  • Mohamed, Mohamed H.

Abstract

Oscillating water column-based Wells turbine is one of the potential possibilities for wave energy conversion. The early turbine stall caused an early performance loss, limiting the power produced and the operating range. The present work intends to boost the output power and operating range of the Wells turbine by using a tapered leading-edge micro-cylinder. This design is unique in that the micro-cylinder's diameter and its distance from the leading-edge change along the blade span. A response surface optimization technique based on computational fluid dynamics (CFD) is used to determine the optimal dimensions of the new design. Utilizing the optimal new design in the upgraded Wells turbine significantly increases power output and operating range, specifically by 78.13% and 33.33%, respectively. According to comprehensive flow analysis, the novel micro-cylinder design generates a pair of vortices that successfully reduce axial flow velocities close to the suction side across a sizable portion of the blade span. This, in turn, results in the postponement of flow separation towards the trailing edge.

Suggested Citation

  • Kotb, Ahmed T.M. & Nawar, Mohamed A.A. & Attai, Youssef A. & Mohamed, Mohamed H., 2024. "Impact of tapered leading-edge micro-cylinder on the performance of wells turbine for wave energy conversion: CFD-optimization algorithms coupling study," Energy, Elsevier, vol. 293(C).
  • Handle: RePEc:eee:energy:v:293:y:2024:i:c:s0360544224004201
    DOI: 10.1016/j.energy.2024.130648
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    References listed on IDEAS

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    1. 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.
    2. Kim, T.H. & Setoguchi, T. & Kaneko, K. & Raghunathan, S., 2002. "Numerical investigation on the effect of blade sweep on the performance of Wells turbine," Renewable Energy, Elsevier, vol. 25(2), pages 235-248.
    3. 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).
    4. Govardhan, M. & Dhanasekaran, T.S., 2002. "Effect of guide vanes on the performance of a self-rectifying air turbine with constant and variable chord rotors," Renewable Energy, Elsevier, vol. 26(2), pages 201-219.
    5. Fahmy, Mohamed Abdelsabour, 2019. "Design optimization for a simulation of rotating anisotropic viscoelastic porous structures using time-domain OQBEM," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 166(C), pages 193-205.
    6. 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).
    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.
    8. 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.
    9. 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.
    10. Das, Tapas K. & Samad, Abdus, 2020. "Influence of stall fences on the performance of Wells turbine," Energy, Elsevier, vol. 194(C).
    11. Ciappi, Lorenzo & Cheli, Lapo & Simonetti, Irene & Bianchini, Alessandro & Talluri, Lorenzo & Cappietti, Lorenzo & Manfrida, Giampaolo, 2022. "Wave-to-wire models of wells and impulse turbines for oscillating water column wave energy converters operating in the Mediterranean Sea," Energy, Elsevier, vol. 238(PA).
    12. Shehata, Ahmed S. & Xiao, Qing & El-Shaib, Mohamed & Sharara, Ashraf & Alexander, Day, 2017. "Comparative analysis of different wave turbine designs based on conditions relevant to northern coast of Egypt," Energy, Elsevier, vol. 120(C), pages 450-467.
    13. Mohamed, M.H. & Janiga, G. & Pap, E. & Thévenin, D., 2011. "Multi-objective optimization of the airfoil shape of Wells turbine used for wave energy conversion," Energy, Elsevier, vol. 36(1), pages 438-446.
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