Noise model for serrated trailing edges compared to wind tunnel measurements

被引：4

作者：

Fischer, Andreas ^{[1
]}

Bertagnolio, Franck ^{[1
]}

Shen, Wen Zhong ^{[1
]}

Madsen, Jesper ^{[2
]}

机构：

[1] Tech Univ Denmark, Inst Wind Energy, Frederiksborgvej 399, DK-4000 Roskilde, Denmark

[2] LM Wind Power AS, Jupitervej 6, DK-6000 Kolding, Denmark

来源：

SCIENCE OF MAKING TORQUE FROM WIND (TORQUE 2016) | 2016年 / 753卷

关键词：

TURBULENT-FLOW;

D O I：

10.1088/1742-6596/753/2/022053

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A new CFD RANS based method to predict the far field sound pressure emitted from an aerofoil with serrated trailing edge has been developed. The model was validated by comparison to measurements conducted in the Virginia Tech Stability Wind Tunnel. The model predicted 3 dB lower sound pressure levels, but the tendencies for the different configurations were predicted correctly. Therefore the model can be used to optimise the serration geometry. A disadvantage of the new model is that the computational costs are significantly higher than for the Amiet model for a straight trailing edge. However, it is by decades faster than LES methods.

引用

页数：9

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