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On some structure-turbulence interaction problemsThe interactions between a turbulent flow structure; responding to its excitation were studied. The turbulence was typical of those associated with a boundary layer, having a cross-spectral density indicative of convection and statistical decay. A number of structural models were considered. Among the one-dimensional models were an unsupported infinite beam and a periodically supported infinite beam. The fuselage construction of an aircraft was then considered. For the two-dimensional case a simple membrane was used to illustrate the type of formulation applicable to most two-dimensional structures. Both the one-dimensional and two-dimensional structures studied were backed by a cavity filled with an initially quiescent fluid to simulate the acoustic environment when the structure forms one side of a cabin of a sea vessel or aircraft.
Document ID
19770009043
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Maekawa, S. (Illinois Univ. Urbana-Champaign, IL, United States)
Lin, Y. K. (Illinois Univ. Urbana-Champaign, IL, United States)
Date Acquired
September 3, 2013
Publication Date
December 1, 1976
Subject Category
Aerodynamics
Report/Patent Number
NASA-CR-149461
Accession Number
77N15986
Funding Number(s)
CONTRACT_GRANT: NSG-1264
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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