AERODYNAMIC OPTIMIZATION DESIGN OF BLUNT TRAILING EDGE AIRFOIL CONSIDERING STRUCTURLA CHARACTERISTICS

Wang Shaocong; Tian Hongyan; Tang Zhihao; Zhu Shen&#x02019;an

doi:10.19912/j.0254-0096.tynxb.2024-0150

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (5) : 612-618. DOI: 10.19912/j.0254-0096.tynxb.2024-0150

AERODYNAMIC OPTIMIZATION DESIGN OF BLUNT TRAILING EDGE AIRFOIL CONSIDERING STRUCTURLA CHARACTERISTICS

Wang Shaocong¹, Tian Hongyan^1,2, Tang Zhihao¹, Zhu Shen’an¹

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Abstract

In order to obtain a wind turbine airfoil with high aerodynamic performance and high structural stiffness, a blunt trailing edge airfoil optimization method with both aerodynamic and structural performance was proposed. Aiming at improving lift-drag ratio and torsional moment of inertia of airfoil at design angle of attack, based on multi-island genetic algorithm, the airfoil parametric model is established by combining CST parameterization method with blunt trailing edge modification. The aerodynamic analysis is performed by XFOIL and the structural performance is analyzed by Matlab program to optimize the initial airfoil. The optimization results are compared with those of the initial airfoil DU91-W2-250 in terms of aerodynamic and structural aspects. The results show that the optimized airfoil has a higher lift coefficient and lift-drag ratio within the range of operating angle of attack, and the optimized airfoil has increased resistance to deformation, and the overall performance of the airfoil is better.

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wind turbines / aerodynamics / structural optimization / blunt trailing edge airfoil

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Wang Shaocong, Tian Hongyan, Tang Zhihao, Zhu Shen’an. AERODYNAMIC OPTIMIZATION DESIGN OF BLUNT TRAILING EDGE AIRFOIL CONSIDERING STRUCTURLA CHARACTERISTICS[J]. Acta Energiae Solaris Sinica. 2025, 46(5): 612-618 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0150

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