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Noise model for serrated trailing edges compared to wind tunnel measurements
- Source :
- Journal of Physics: Conference Series. 753:022053
- Publication Year :
- 2016
- Publisher :
- IOP Publishing, 2016.
-
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.
- Subjects :
- Airfoil
History
Engineering
business.industry
Acoustics
Structural engineering
Computational fluid dynamics
01 natural sciences
010305 fluids & plasmas
Computer Science Applications
Education
Serration
Noise
0103 physical sciences
Trailing edge
business
Sound pressure
Reynolds-averaged Navier–Stokes equations
010301 acoustics
Wind tunnel
Subjects
Details
- ISSN :
- 17426596 and 17426588
- Volume :
- 753
- Database :
- OpenAIRE
- Journal :
- Journal of Physics: Conference Series
- Accession number :
- edsair.doi...........a990a6b04c8add63e1422a5ad2859979