New models for wind noise measured in a flat surface under turbulent flow

We have previously developed models for predicting the power spectral density of the wind noise pressure measured in a flat plate outdoors from the measured power spectral density of the turbulence and the measured wind velocity profile above the plate [Yu et al., Proceedings of NCAD 2008, NoiseCon2...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2009-04, Vol.125 (4_Supplement), p.2630-2630
Main Authors: Yu, Jiao, Raspet, Richard, Webster, Jeremy, Abbott, JohnPaul
Format: Article
Language:English
Subjects:
Acoustic waves
Noise pollution
Turbulent flow
Wind velocities
Online Access:Get full text
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Summary:We have previously developed models for predicting the power spectral density of the wind noise pressure measured in a flat plate outdoors from the measured power spectral density of the turbulence and the measured wind velocity profile above the plate [Yu et al., Proceedings of NCAD 2008, NoiseCon2008-ASME NCAD]. Recently we have corrected an error in the model for the logarithmic profile wind velocity gradient results and have developed an improved integration method. Also, we have developed a prediction for arbitrary wind velocity profiles using the previous single exponential model. Typical results comparing our predictions with our measurements are presented and analyzed. A simple algebraic fit to the prediction for the logarithmic profile fit form is also provided for use by others. [Research supported by the U.S. Army TACOM-ARDEC at Picatinny Arsenal, NJ.]
ISSN:0001-4966
1520-8524
DOI:10.1121/1.4784039