OPTIMIZED DESIGN AND AERODYNAMIC PERFORMANCE ANALYSIS OF WIND TURBINE AIRFOIL BASED ON KRIGING MODEL

Wang Qing; Zhang Min; Li Deshun; Li Guoqiang; Tang Longchen

doi:10.19912/j.0254-0096.tynxb.2023-1014

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (10) : 625-634. DOI: 10.19912/j.0254-0096.tynxb.2023-1014

OPTIMIZED DESIGN AND AERODYNAMIC PERFORMANCE ANALYSIS OF WIND TURBINE AIRFOIL BASED ON KRIGING MODEL

Wang Qing¹, Zhang Min¹, Li Deshun¹, Li Guoqiang², Tang Longchen¹

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Abstract

Coupled with high-precision numerical simulation method, Kriging agent model and genetic algorithm, an efficient and high-precision numerical simulation algorithm is established. The maximum lift-to-drag ratio and maximum tangential force coefficient of the airfoil are used as the objective functions to optimize the aerodynamic shape of the S809 airfoil under multiple states and multiple objectives. The results show that the lift-to-drag ratios of the optimized airfoil are improved by 10.34% and 10.75% for the Re=1×10⁶ with angle of attack of 6°, and Re=5×10⁵ with angle of attack of 8°, respectively. In order to verify the applicability of the optimized airfoil in wind turbine design, this paper further designs a three-blade wind turbine based on the optimized airfoil and the S809 airfoil, and compares the wind turbine aerodynamic performance under different working conditions, and finds that the C_P of the wind turbine blade based on the optimized airfoil design increases by 7.5% under the design condition; while C_P increases by 7.54% under the yaw condition. This proves that the optimized airfoil can better adapt to the non-constant condition.

Key words

airfoil / optimization / wind turbines / Kriging model / computational fluid dynamics

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Wang Qing, Zhang Min, Li Deshun, Li Guoqiang, Tang Longchen. OPTIMIZED DESIGN AND AERODYNAMIC PERFORMANCE ANALYSIS OF WIND TURBINE AIRFOIL BASED ON KRIGING MODEL[J]. Acta Energiae Solaris Sinica. 2024, 45(10): 625-634 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1014

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