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Unified analysis of ducted turbomachinery noiseAn approach for an analysis of ducted turbomachinery noise is developed by combining features of the analysis of fan stator noise reported by Hanson (1973) with results obtained by Zorumski (1974). Hanson's analysis is briefly examined and a formula is derived for the far-field pressure due to a dipole pulse. Questions of transmission and reflection are discussed and attention is given to the radiation from ducted dipoles.
Document ID
19750043789
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Zorumski, W. E.
Lester, H. C. (NASA Langley Research Center Hampton, Va., United States)
Date Acquired
August 8, 2013
Publication Date
November 1, 1974
Subject Category
Aircraft Propulsion And Power
Meeting Information
Meeting: Acoustical Society of America, Meeting
Location: St. Louis, MO
Start Date: November 4, 1974
End Date: November 8, 1974
Sponsors: USAF
Accession Number
75A27861
Distribution Limits
Public
Copyright
Other

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