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中文摘要：
引入试验中正交设计的思想，通过数值模拟研究了风力机翼型尾缘襟翼不同参数的影响。采用带有转捩模型的SSTk—u湍流模型模拟了基于S809的尾缘襟翼的尺寸、偏斜角度和形状的影响。结果表明：尾缘襟翼尺寸、偏斜角度对于翼型相关气动参数影响较大，在考查参数范围内折中采用10％弦长、偏斜10°的尾缘襟翼综合性能较好；尾缘襟翼形状函数影响相对较小，采用变化较平缓的尾缘襟翼有利于保持流动稳定性。
英文摘要：
Introducing the orthogonal experimental design method, influences of different parameters such as the size, angle and shape, on the wind turbine airfoil S809 with a trailing edge flap are studied using SST k - w turbulence model with a transition model. The results indicate that the flap size and angle have big influences on aerodynamic properties of wind turbine airfoil. Among the studied parameters, the flap with 10% chord length and 10° flap angle obtains better performances. The shape of the flap has relatively smaller influences, but it makes for a stable flowfield using a mildly changing flap shape.
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