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Some features of a wake tone flow fieldAn experimental investigation of a two-dimensional model of bluff body wake-surface interaction noise examines the changes in the flow field associated with changes in sound generated. Results show three distinct flow regimes separated by large differences in wake structure. In the first, with the surface in the near wake, discrete frequency sound is totally suppressed. At greater separation distances an amplified discrete frequency tone, a wake tone, is generated with the frequency a function of the separation distance. The final regime, with the surface in the far wake, is similar to a wake with no surface interaction.
Document ID
19780038694
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Smith, C. A. (Nielsen Engineering and Research, Inc. Mountain View, Calif., United States)
Karamcheti, K. (Stanford University Stanford, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Acoustics
Report/Patent Number
AIAA PAPER 78-238
Report Number: AIAA PAPER 78-238
Meeting Information
Meeting: Aerospace Sciences Meeting
Location: Huntsville, AL
Start Date: January 16, 1978
End Date: January 18, 1978
Sponsors: American Institute of Aeronautics and Astronautics
Accession Number
78A22603
Funding Number(s)
CONTRACT_GRANT: NSG-2007
CONTRACT_GRANT: NSG-676
Distribution Limits
Public
Copyright
Other

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