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Absorption of sound in air - High-frequency measurementsThe absorption of sound in air at frequencies from 4 to 100 kHz in 1/12 octave intervals, for temperatures from 255.4 K (0 F) to 310.9 K (100 F) in 5.5 K (10 F) intervals, and at 10% relative-humidity increments between 0% and saturation has been measured. The values of free-field absorption have been analyzed to determine the relaxation frequency of oxygen for each of the 92 combinations of temperature and relative humidity studied and the results are compared to an empirical expression. The relaxation frequencies of oxygen have been analyzed to determine the microscopic energy-transfer rates.
Document ID
19770065143
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Bass, H. E.
(Mississippi Univ. University, MS, United States)
Shields, F. D.
(Mississippi, University University, Miss., United States)
Date Acquired
August 9, 2013
Publication Date
September 1, 1977
Publication Information
Publication: Acoustical Society of America
Subject Category
Acoustics
Accession Number
77A47995
Funding Number(s)
CONTRACT_GRANT: NAS3-19431
Distribution Limits
Public
Copyright
Other

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