A well-known 30% thick wind turbine aerofoil was partially equipped with riblets, and lift and drag data were measured in a large acoustic wind tunnel. Drag was reduced up to 10%, and lift-to-drag ratio increased by up to 30%.

中文翻译：

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配备肋条的 DU97-W-300-mod 的风洞研究

著名的 30% 厚的风力涡轮机翼型部分配备了肋条，并在大型声学风洞中测量了升力和阻力数据。阻力减少了 10%，升阻比增加了 30%。