INFLUENCE OF V-SHAPED GROUP CONFIGURATION ON ENERGY HARVESTING CHARACTERISTICS OF FLAPPING HYDROFOIL

Dong Lu; Zhu Jianyang; Song Zhenyu; Deng Jianghong

doi:10.19912/j.0254-0096.tynxb.2023-1817

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (3) : 7-15. DOI: 10.19912/j.0254-0096.tynxb.2023-1817

INFLUENCE OF V-SHAPED GROUP CONFIGURATION ON ENERGY HARVESTING CHARACTERISTICS OF FLAPPING HYDROFOIL

Dong Lu, Zhu Jianyang, Song Zhenyu, Deng Jianghong

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Abstract

Numerical analysis and Taguchi method are applied to investigate the impact of the V-shaped staggered configuration on the energy harvesting performance of the flapping hydrofoil. The results show that the three hydrofoils in a V-shaped group configuration with optimum parameters increased the output efficiency by 16.48% compared with the single hydrofoil. Meanwhile, the influence degree of the five parameters considered in this work on the performance can be ordered as $\phi L_{x} L_{y} \theta_{0} f^{*}$, which means that the phase difference between upstream and downstream hydrofoil has the greatest impact on the output performance of the flapping hydrofoil and that of the flapping frequency is weakest. The analysis of the flow field structure around the flapping hydrofoil reveals that under the optimal combination of characteristic parameters, the greater dynamic pressure can be obtained by the downstream hydrofoil, which is induced by the shedding vortex of the upstream hydrofoils, and it is the reason why the group flapping hydrofoil can extract more energy.

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Taguchi methods / numerical analysis / energy harvesting / flapping hydrofoil / V-shaped group configuration

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Dong Lu, Zhu Jianyang, Song Zhenyu, Deng Jianghong. INFLUENCE OF V-SHAPED GROUP CONFIGURATION ON ENERGY HARVESTING CHARACTERISTICS OF FLAPPING HYDROFOIL[J]. Acta Energiae Solaris Sinica. 2025, 46(3): 7-15 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1817

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