风力机波形前缘叶片气动性能及流场特性分析
Analysis of Aerodynamic Performance and Flow Field Characteristics of Wind Turbine Leading Edge Blades
摘要: 针对波形前缘结构可以延缓失速以及改变叶片流场的特性，采用数值模拟方法研究波形前缘叶片的气动性能以及流场特性，获得波形前缘结构对叶片绕流流场的影响规律。结果表明：波形前缘结构可以有效延缓失速的发生，尤其在大攻角下效果更为明显；在前缘波谷处静压变化相较于波峰处更为剧烈，且波峰控制流动效果最佳，波谷处最差。
Abstract:
Aiming at the characteristics that the wavy leading edge structure can delay stall and change the flow field of the blade, the aerodynamic performance and flow field characteristics of the wavy leading edge blade are studied by numerical simulation method, and the influence of the wavy leading edge structure on the flow field around the blade is obtained. The results show that the wave leading edge structure can effectively delay the occurrence of stall, especially at high angle of attack. The static pressure change at the leading edge trough is more severe than that at the peak, and the peak control flow effect is the best, and the trough is the worst.
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