RESEARCH ON EFFECT OF TRAILING EDGE JET FLAP ON AERODYNAMIC CHARACTERISTICS OF VERTICAL AXIS WIND TURBINE

Wang Peilin; Liu Qingsong; Miao Weipao; Li Chun; Luo Shuai; Li Gen

doi:10.19912/j.0254-0096.tynxb.2021-0137

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (9) : 242-250. DOI: 10.19912/j.0254-0096.tynxb.2021-0137

RESEARCH ON EFFECT OF TRAILING EDGE JET FLAP ON AERODYNAMIC CHARACTERISTICS OF VERTICAL AXIS WIND TURBINE

Wang Peilin¹, Liu Qingsong¹, Miao Weipao¹, Li Chun^1,2, Luo Shuai¹, Li Gen¹

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Abstract

In order to improve the aerodynamic performance of vertical axis wind turbine and its dynamic stall characteristics, the jet flaps were arranged on the pressure surface of the trailing edge of the airfoil, and five jet control strategies were proposed. The effects of different jet control strategies on the aerodynamic performance of vertical axis wind turbine were studied by computational fluid dynamics （CFD）, and the optimal control strategy was determined. The results show that when the jet control is applied in the phase Angle range of 180-360, the wind energy utilization coefficient of the wind turbine can be increased by 31.31% under the optimal tip speed ratio, and the formation and development of trailing edge vortices on the suction surface can be effectively inhibited, and the pressure difference between the two sides of the wing surface can be increased. The closer the jet flow is to the trailing edge, the better the aerodynamic performance improvement effect of the vertical axis wind turbine is.

Key words

vertical axis wind turbines / aerodynamic characteristics / flow control / trailing edge jet / CFD

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Wang Peilin, Liu Qingsong, Miao Weipao, Li Chun, Luo Shuai, Li Gen. RESEARCH ON EFFECT OF TRAILING EDGE JET FLAP ON AERODYNAMIC CHARACTERISTICS OF VERTICAL AXIS WIND TURBINE[J]. Acta Energiae Solaris Sinica. 2022, 43(9): 242-250 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0137

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