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Enhancement of Far Field Sound Levels by Refractive FocusingThe enhancement of sound pressure levels resulting from refractive focusing was calculated for meteorological conditions representative of those observed at the MOD-1 site near Boone, N.C. The results show that 10 to 20dB enhancements can occur over ranges of several hundred meters. Localized enhancements in excess of 20dB can occur but will probably be of limited duration as a consequence of normal temporally varying meteorological conditions.
Document ID
19820015852
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Thomson, D. W. (Pennsylvania State Univ. University Park, PA, United States)
Roth, S. D. (Pennsylvania State Univ. University Park, PA, United States)
Date Acquired
August 10, 2013
Publication Date
May 1, 1981
Publication Information
Publication: NASA. Lewis Research Center Wind Turbine Dyn.
Subject Category
Energy Production And Conversion
Accession Number
82N23728
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19820015808Collected WorksWind Turbine Dynamics
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