NUMERICAL STUDY ON INFLUENCE OF SOLIDITY ON PERFORMANCE OF DUCTED TIDAL TURBINE

Cui Baoyu; Si Xiancai; Yuan Peng; Liu Yonghui; Yang Hongyan; Chen Jianmei

doi:10.19912/j.0254-0096.tynxb.2020-0234

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (2) : 69-74. DOI: 10.19912/j.0254-0096.tynxb.2020-0234

NUMERICAL STUDY ON INFLUENCE OF SOLIDITY ON PERFORMANCE OF DUCTED TIDAL TURBINE

Cui Baoyu¹, Si Xiancai^1,2, Yuan Peng^1,2, Liu Yonghui¹, Yang Hongyan¹, Chen Jianmei³

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Abstract

The aim of this study was to investigate the influence of rotor solidity on performance of the ducted tidal turbine. The three-dimensional numerical model of the ducted tidal turbine was established. CFD method was used to investigate the performance parameters, flow field velocity and pressure distribution of the ducted tidal turbine with different solidity blades. By comparing the results, it is showed that variation of blade solidity has significant influence on hydrodynamic performance of ducted turbine working in rated tidal stream velocity. The maximum power coefficient of the turbine decreases with the increase of solidity. Moreover, the ducting effect of the shroud on the fluid velocity growth with the increase of rotor's solidity is weakened.

Key words

tidal power / CFD / tidal turbine / performance coefficient / solidity

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Cui Baoyu, Si Xiancai, Yuan Peng, Liu Yonghui, Yang Hongyan, Chen Jianmei. NUMERICAL STUDY ON INFLUENCE OF SOLIDITY ON PERFORMANCE OF DUCTED TIDAL TURBINE[J]. Acta Energiae Solaris Sinica. 2022, 43(2): 69-74 https://doi.org/10.19912/j.0254-0096.tynxb.2020-0234

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