SIMULATION STUDY ON AERODYNAMIC CHARACTERISTICS OF VERTICALLY SYMMETRIC FOUR-BLADE WIND TURBINE

Li Yapeng; Huang Caojun; Liu Kaixuan; Ma Chao

doi:10.19912/j.0254-0096.tynxb.2020-0538

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (3) : 419-425. DOI: 10.19912/j.0254-0096.tynxb.2020-0538

SIMULATION STUDY ON AERODYNAMIC CHARACTERISTICS OF VERTICALLY SYMMETRIC FOUR-BLADE WIND TURBINE

Li Yapeng, Huang Caojun, Liu Kaixuan, Ma Chao

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Abstract

The aerodynamic performance of vertical axis wind turbine is calculated by CFD software. Firstly, ICEM software is used to preprocess the model, and fluent software is used for numerical simulation to analyze the influence of different calculation time step and turbulence model on the aerodynamic characteristics simulation results of wind turbine, and the calculation method conforming to the research model is determined. Then, it is found that the maximum power factor is obtained when the tip speed ratio is 0.42. In addition, the influence of different incoming wind speeds on the performance of the wind turbine is calculated and analyzed. The results show that the average torque of the windward rotation vertical axis wind turbine increases with the increase of the incoming wind speed, and the average torque coefficient and power coefficient have nothing to do with the incoming wind speed. Finally, the performance of the rotor is compared with that of the enhanced vertical axis wind turbine under different common angles. It is concluded that when the near- revolution Angle is 40° and the far-revolution Angle is 50° the wind turbine has the highest average torque coefficient. From this, the pitch law of the wind turbine blade is deduced, and the self-starting performance of the wind turbine under this pitch law is analyzed.

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CFD / numerical modeling / wind turbines / vertical axis / aerodynamics / tip speed ratio

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Li Yapeng, Huang Caojun, Liu Kaixuan, Ma Chao. SIMULATION STUDY ON AERODYNAMIC CHARACTERISTICS OF VERTICALLY SYMMETRIC FOUR-BLADE WIND TURBINE[J]. Acta Energiae Solaris Sinica. 2022, 43(3): 419-425 https://doi.org/10.19912/j.0254-0096.tynxb.2020-0538

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