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Acoustic propagation in partially choked converging-diverging ductsA computer model based on the wave-envelope technique is used to study acoustic propagation in converging-diverging hard walled and lined circular ducts carrying near sonic mean flows. The influences of the liner admittance, boundary layer thickness, spinning mode number, and mean Mach number are considered. The numerical results indicate that the diverging portion of the duct can have a strong reflective effect for partially choked flows.
Document ID
19820049931
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1016/0022-460X(82)90294-2
Authors
Kelly, J. J. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Nayfeh, A. H. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Watson, L. T. (Virginia Polytechnic Institute and State University Blacksburg, VA, United States)
Date Acquired
August 10, 2013
Publication Date
April 22, 1982
Publication Information
Publication: Journal of Sound and Vibration
Volume: 81
Subject Category
Acoustics
Accession Number
82A33466
Funding Number(s)
CONTRACT_GRANT: NSG-1573
Distribution Limits
Public
Copyright
Other

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