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Noise generated by impingement of a jet upon a large flat board / by William A. Olsen, Jeffrey H. Miles, and Robert G. Dorsch.
- Format:
- Book
- Government document
- Author/Creator:
- Olsen, William A., author.
- Miles, Jeffrey H. (Jeffrey Hilton), author.
- Dorsch, Robert G., author.
- Series:
- NASA technical note ; D-7075.
- NASA/TN ; D-7075
- Language:
- English
- Subjects (All):
- Jet nozzles--Noise.
- Jet nozzles.
- Physical Description:
- 1 online resource (iii, 33 pages) : illustrations.
- Place of Publication:
- Washington, D.C. : National Aeronautics and Space Administration, December 1972.
- Summary:
- Data were obtained on the noise generated by an air jet impinging on a large flat board. The board was large enough so that the flow leaving the edges of the board generated no significant noise. The impingement angle, nozzle shape and size, jet velocity, and the distance from the nozzle to the board were varied in the experiment. Far-field noise data are presented. The nozzle-alone noise contribution to the total noise was generally small and was subtracted from the total, leaving the impingement-only noise. The impingement-only noise was adequately correlated by eighth power of the peak impingement velocity and first power of the impingement area. The spectral data were correlated by a Strouhal number based on the peak impingement velocity and a characteristic impingement diameter.
- Notes:
- "December 1972."
- Includes bibliographical references (page 33).
- Description based on online resource, PDF version; title from title page (NASA, viewed on June 1, 2021).
- OCLC:
- 23284111
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