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A study on the influence of schooling patterns on the energy harvest of double undulatory airfoils

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  • Ma, Qiyu
  • Ding, Li
  • Huang, Diangui

Abstract

Undulatory flexible bodies can harvest energy from fluid flow under certain motion parameters. In order to reveal how schooling patterns affect the energy absorption efficiency of undulatory fishlike airfoils, several parameters have been considered, such as spacing and phase differences between the two airfoils. The object of this study is to employ NACA0012 airfoil as a two-dimensional simplified model, by means of numerical simulation, to investigate the influence of spacing and phase differences on energy harvest of double undulatory airfoils in different patterns. For convenience of analysis, the efficiency of energy harvest, also called energy absorption efficiency, has been calculated separately for each of the double airfoils. The results indicate that energy absorption efficiency, whether in a tandem or staggered pattern, will change significantly, compared with that in a single airfoil.

Suggested Citation

  • Ma, Qiyu & Ding, Li & Huang, Diangui, 2021. "A study on the influence of schooling patterns on the energy harvest of double undulatory airfoils," Renewable Energy, Elsevier, vol. 174(C), pages 674-687.
    • Handle: RePEc:eee:renene:v:174:y:2021:i:c:p:674-687
    DOI: 10.1016/j.renene.2021.04.053
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    References listed on IDEAS

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    1. Liang Li & Máté Nagy & Jacob M. Graving & Joseph Bak-Coleman & Guangming Xie & Iain D. Couzin, 2020. "Vortex phase matching as a strategy for schooling in robots and in fish," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
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    Cited by:

    1. Qi, Mingliang & Ma, Qiyu & Huang, Diangui, 2022. "Influence of lengthways spacing and phase difference on traveling wave energy absorption characteristics of flexible airfoils in a diamond array," Renewable Energy, Elsevier, vol. 200(C), pages 98-110.
    2. Zhu, Qianming & Ma, Qiyu & Qi, Yinke & Huang, Diangui, 2022. "Traveling wave turbine - An internal flow energy absorption mode based on the traveling wave motion," Renewable Energy, Elsevier, vol. 195(C), pages 137-146.
    3. Ruan, Pengcheng & Huang, Diangui, 2023. "Study of aerodynamic performance of built-in variable wavelength traveling wave turbine," Renewable Energy, Elsevier, vol. 205(C), pages 918-928.
    4. Zhu, Qianming & Qi, Yinke & Huang, Diangui, 2023. "Numerical simulation of performance of traveling wave pump-turbine at different wave speeds in pumping mode," Renewable Energy, Elsevier, vol. 203(C), pages 485-494.

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