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Tests Of Shear-Flow Model For Acoustic ImpedanceTests described in report conducted to validate two-dimensional shear-flow analytical model for determination of acoustic impedance of acoustic liner in grazing-incidence, grazing-flow environment by use of infinite-waveguide method. Tests successful for both upstream and downstream propagations. Work has potential for utility in testing of engine ducts in commercial aircraft.
Document ID
19930000227
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Parrot, Tony L. (NASA Langley Research Center, Hampton, VA.)
Watson, Willie R. (NASA Langley Research Center, Hampton, VA.)
Jones, Michael G. (PRC Kentron, Inc.)
Date Acquired
August 16, 2013
Publication Date
April 1, 1992
Publication Information
Publication: NASA Tech Briefs
Volume: 17
Issue: 4
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
LAR-14310
Accession Number
93B10227
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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