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粗糙度对风力机翼型气动性能影响的数值预测

, PP. 111-115

Keywords: 风力机,翼型,粗糙度,气动性能

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Abstract:

采用二维不可压缩N-S方程和SSTk-ω湍流模型研究了风力机翼型DU95-W-180在粗糙表面时的空气动力学性能,在整个翼型表面均匀分布不同高度的粗糙带时,得到了该翼型的升力和阻力特性曲线,以及最敏感的粗糙度;同时,研究了在翼型压力面和吸力面的不同位置布置粗糙带时,粗糙带位置对翼型的升力和阻力特性的影响,通过分析得到了该翼型对粗糙带的最敏感位置,并进一步分析了翼型两个敏感位置的粗糙度对翼型升力特性、阻力特性和升阻比的影响。

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