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Comparison of the Power Extraction Performance of an Oscillating Hydrofoil Turbine with Different Deflector Designs

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  • Arun Raj Shanmugam

    (Department of Mechanical and Aerospace Engineering, United Arab Emirates University, Al Ain 15551, Abu Dhabi, United Arab Emirates)

  • Ki Sun Park

    (Department of Mechanical and Aerospace Engineering, United Arab Emirates University, Al Ain 15551, Abu Dhabi, United Arab Emirates
    National Space Science and Technology Center (NSSTC), United Arab Emirates University, Al Ain 15551, Abu Dhabi, United Arab Emirates)

  • Chang Hyun Sohn

    (School of Mechanical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea)

Abstract

The unsteady RANS equations for a two-dimensional hydrofoil were solved using ANSYS Fluent to model and simulate the hydrofoil at a constant Reynolds number, Re , of 2 × 10 5 and a fixed reduced frequency, f *, of 0.14. The simulations were performed by varying parameters, such as the number of deflectors N , tilt angle of the deflectors β , and vertical spacing of the deflectors J * = J / c , to determine the effect of the upstream deflector’s position on the hydrofoil’s performance. The results demonstrated that the deflector was effective at redirecting the separated flow away from the edges, which was then amplified downstream before colliding with the leading edge of the oscillating hydrofoil to increase power extraction. The performance of the oscillating hydrofoil was highly reliant on all three studied parameters. The hydrofoil with two deflectors ( N = 2) displayed marginally superior power extraction capability compared to the hydrofoil with a single deflector ( N = 1). Furthermore, the hydrofoil with the rightward inclined deflector at a low tilt angle (−5° ≥ β ≥ −10°) exhibited relatively better power extraction performance than the others. The best deflector design increased the hydrofoil’s cycle-averaged power coefficient by approximately 32% compared to a hydrofoil without a deflector. The vortex structures revealed that the flow evolution and power extraction performance were dependent on the size, robustness, and growth rate of the leading edge vortex (LEV) as well as the timing of LEV separation. The power extraction efficiency of an oscillating hydrofoil increased in the mid downstroke and upstroke due to the formation of a more robust LEV when the hydrofoil–deflector interaction was advantageous, but it dropped in the wing reversal due to the early separation of the LEV when the hydrofoil–deflector interaction was counterproductive.

Suggested Citation

  • Arun Raj Shanmugam & Ki Sun Park & Chang Hyun Sohn, 2023. "Comparison of the Power Extraction Performance of an Oscillating Hydrofoil Turbine with Different Deflector Designs," Energies, MDPI, vol. 16(8), pages 1-29, April.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:8:p:3420-:d:1122651
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    References listed on IDEAS

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    1. Jiang, W. & Mei, Z.Y. & Wu, F. & Han, A. & Xie, Y.H. & Xie, D.M., 2022. "Effect of shroud on the energy extraction performance of oscillating foil," Energy, Elsevier, vol. 239(PD).
    2. Zhu, Bing & Huang, Yun & Zhang, Yongming, 2018. "Energy harvesting properties of a flapping wing with an adaptive Gurney flap," Energy, Elsevier, vol. 152(C), pages 119-128.
    3. Golecha, Kailash & Eldho, T.I. & Prabhu, S.V., 2011. "Influence of the deflector plate on the performance of modified Savonius water turbine," Applied Energy, Elsevier, vol. 88(9), pages 3207-3217.
    4. Karbasian, H.R. & Esfahani, J.A. & Barati, E., 2015. "Simulation of power extraction from tidal currents by flapping foil hydrokinetic turbines in tandem formation," Renewable Energy, Elsevier, vol. 81(C), pages 816-824.
    5. Lahooti, Mohsen & Kim, Daegyoum, 2019. "Multi-body interaction effect on the energy harvesting performance of a flapping hydrofoil," Renewable Energy, Elsevier, vol. 130(C), pages 460-473.
    6. Xie, Y.H. & Jiang, W. & Lu, K. & Zhang, D., 2016. "Numerical investigation into energy extraction of flapping airfoil with Gurney flaps," Energy, Elsevier, vol. 109(C), pages 694-702.
    7. Chong, Wen-Tong & Muzammil, Wan Khairul & Ong, Hwai-Chyuan & Sopian, Kamaruzzaman & Gwani, Mohammed & Fazlizan, Ahmad & Poh, Sin-Chew, 2019. "Performance analysis of the deflector integrated cross axis wind turbine," Renewable Energy, Elsevier, vol. 138(C), pages 675-690.
    8. Sun, Guang & Wang, Yong & Xie, Yudong & Lv, Kai & Sheng, Ruoyu, 2021. "Research on the effect of a movable gurney flap on energy extraction of oscillating hydrofoil," Energy, Elsevier, vol. 225(C).
    9. Wang, Ying & Sun, Xiaojing & Huang, Diangui & Zheng, Zhongquan, 2016. "Numerical investigation on energy extraction of flapping hydrofoils with different series foil shapes," Energy, Elsevier, vol. 112(C), pages 1153-1168.
    10. Xu, Bin & Ma, Qiyu & Huang, Diangui, 2021. "Research on energy harvesting properties of a diffuser-augmented flapping wing," Renewable Energy, Elsevier, vol. 180(C), pages 271-280.
    11. Joeri Rogelj & Michel den Elzen & Niklas Höhne & Taryn Fransen & Hanna Fekete & Harald Winkler & Roberto Schaeffer & Fu Sha & Keywan Riahi & Malte Meinshausen, 2016. "Paris Agreement climate proposals need a boost to keep warming well below 2 °C," Nature, Nature, vol. 534(7609), pages 631-639, June.
    12. Sitorus, Patar Ebenezer & Ko, Jin Hwan, 2019. "Power extraction performance of three types of flapping hydrofoils at a Reynolds number of 1.7E6," Renewable Energy, Elsevier, vol. 132(C), pages 106-118.
    13. Li, Ye, 2014. "On the definition of the power coefficient of tidal current turbines and efficiency of tidal current turbine farms," Renewable Energy, Elsevier, vol. 68(C), pages 868-875.
    14. Lu, Kun & Xie, Yonghui & Zhang, Di & Xie, Gongnan, 2015. "Systematic investigation of the flow evolution and energy extraction performance of a flapping-airfoil power generator," Energy, Elsevier, vol. 89(C), pages 138-147.
    15. Liu, Zhengliang & Bhattacharjee, Kalyan Shankar & Tian, Fang-Bao & Young, John & Ray, Tapabrata & Lai, Joseph C.S., 2019. "Kinematic optimization of a flapping foil power generator using a multi-fidelity evolutionary algorithm," Renewable Energy, Elsevier, vol. 132(C), pages 543-557.
    16. Ma, Penglei & Yang, Zhihong & Wang, Yong & Liu, Haibin & Xie, Yudong, 2017. "Energy extraction and hydrodynamic behavior analysis by an oscillating hydrofoil device," Renewable Energy, Elsevier, vol. 113(C), pages 648-659.
    17. Xiao, Qing & Liao, Wei & Yang, Shuchi & Peng, Yan, 2012. "How motion trajectory affects energy extraction performance of a biomimic energy generator with an oscillating foil?," Renewable Energy, Elsevier, vol. 37(1), pages 61-75.
    18. Kang, Can & Zhao, Hexiang & Zhang, Yongchao & Ding, Kejin, 2021. "Effects of upstream deflector on flow characteristics and startup performance of a drag-type hydrokinetic rotor," Renewable Energy, Elsevier, vol. 172(C), pages 290-303.
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    Cited by:

    1. Suleiman Saleh & Chang-Hyun Sohn, 2024. "Numerically Investigating the Energy-Harvesting Performance of an Oscillating Flat Plate with Leading and Trailing Flaps," Energies, MDPI, vol. 17(12), pages 1-19, June.
    2. Suleiman Saleh & Chang-Hyun Sohn, 2024. "Power Extraction Performance by a Hybrid Non-Sinusoidal Pitching Motion of an Oscillating Energy Harvester," Energies, MDPI, vol. 17(11), pages 1-17, May.

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