Noise model for serrated trailing edges compared to wind tunnel measurements

Andreas Fischer, Franck Bertagnolio, Wen Zhong Shen, Jesper Madsen

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Abstract

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.
Original languageEnglish
Article number022053
Book seriesJournal of Physics: Conference Series (Online)
Volume753
Number of pages9
ISSN1742-6596
DOIs
Publication statusPublished - 2016
EventThe Science of Making Torque from Wind 2016 - Technische Universität München (TUM), Munich, Germany
Duration: 5 Oct 20167 Oct 2016
Conference number: 6
https://www.events.tum.de/?sub=29

Conference

ConferenceThe Science of Making Torque from Wind 2016
Number6
LocationTechnische Universität München (TUM)
Country/TerritoryGermany
CityMunich
Period05/10/201607/10/2016
Internet address

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