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Validation of Ray Tracing Code Refraction EffectsNASA's current predictive capabilities using the ray tracing program (RTP) are validated using helicopter noise data taken at Eglin Air Force Base in 2007. By including refractive propagation effects due to wind and temperature, the ray tracing code is able to explain large variations in the data observed during the flight test.
Document ID
20080018647
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Heath, Stephanie L. (NASA Langley Research Center Hampton, VA, United States)
McAninch, Gerry L. (NASA Langley Research Center Hampton, VA, United States)
Smith, Charles D. (Lockheed Martin Corp. Hampton, VA, United States)
Conner, David A. (Army Aviation Systems Command Hampton, VA, United States)
Date Acquired
August 24, 2013
Publication Date
May 5, 2008
Subject Category
Acoustics
Report/Patent Number
AIAA Paper-2008-2994
Report Number: AIAA Paper-2008-2994
Meeting Information
Meeting: 14th AIAA/CEAS Aeroacoustics Conference
Location: Vancouver
Country: Canada
Start Date: May 5, 2008
End Date: May 7, 2008
Sponsors: Confederation of European Aerospace Societies, American Inst. of Aeronautics and Astronautics
Funding Number(s)
WBS: WBS 877868.02.07.07.04.01
Distribution Limits
Public
Copyright
Public Use Permitted.

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