1. 上海理工大学 能源与动力工程学院,上海,200093
2. 上海市动力工程多相流动与传热重点实验室,上海,200093
网络出版:2025-11-17,
纸质出版:2025-11-17
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张强,岳敏楠,李春,缪维跑,张万福. 叶片Darrieus型俯仰失速特性分析及几何参数敏感性研究动力工程学报, 2025, 45(11): 1844-1854 https://doi.
org/10.19805/j.cnki.jcspe.2025.240459
张强,岳敏楠,李春,缪维跑,张万福. 叶片Darrieus型俯仰失速特性分析及几何参数敏感性研究动力工程学报, 2025, 45(11): 1844-1854 https://doi. DOI: 10.19805/j.cnki.jcspe.2025.240459.
org/10.19805/j.cnki.jcspe.2025.240459 DOI:
为深入了解垂直轴风力机叶片独特且复杂的Darrieus型俯仰运动
明确其几何参数对气动特性的影响规律
以NACA0018翼型为对象
研究了叶片Darrieus型俯仰运动的动态失速特性及尾流涡发展。并利用PARSEC参数化方法获得叶片几何参数
构建径向基函数神经网络代理模型
利用Sobol指数对叶片几何参数进行了敏感性分析。结果表明:在Darrieus俯仰过程中
随着攻角逐渐增大
叶片吸力面先出现尾缘反向流
再产生前缘失速
且在下俯过程中前缘失速会使得气动力剧烈振荡;最大厚度处曲率和尾缘偏转角是影响Darrieus型俯仰气动性能的主要因素
且叶片厚度对于力矩系数较为重要;敏感性分析对于叶片气动外形设计具有重要意义。
In order to gain a comprehensive understanding of the unique and complex Darrieus-type pitch motion of vertical axis wind turbine (VAWT) blades
and to clarify the influence laws of geometric parameters on aerodynamic characteristics
taking the NACA0018 airfoil as an object
the dynamic stall characteristics and the development of wake vortices of the Darrieus-type pitch motion of the blades were studied. The PARSEC parameterization method was utilized to obtain the blade geometric parameters. A radial basis function neural network surrogate model was constructed
and the sensitivity of the blade geometric parameters was analyzed using the Sobol index. Results show that in Darrieus pitching
as attack angle gradually increases
the blade suction surface first experiences reverse flow at the trailing edge
followed by leading-edge stall. Moreover
during downward pitch motion
the leading-edge stall causes significant oscillations in the aerodynamic force. The curvature at the maximum thickness and the tail edge deflection angle are the main factors affecting the pitch aerodynamic performance of the Darrieus type
and the blade thickness is particularly important for the moment coefficient. The sensitivity analysis is of great significance for blade aerodynamic profile design.
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