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Fluctuating pressure loads under high speed boundary layersAeroacoustic fatigue is anticipated to control the design of significant portions of the structures of high-speed vehicles. This is due to contemplated long-duration flights at high dynamic pressures and Mach numbers with related high skin temperatures. Fluctuating pressure loads are comparatively small beneath attached turbulent boundary layers, but become important in regions of flow separation such as compression and expansion corners on elevons and rudders. The most intense loads are due to shock/boundary-layer interaction. These flows may occur in the engine-exhaust wall jet and in flows over control surfaces. A brief review is given of available research in these areas with a description of work under way at Langley Research Center.
Document ID
19880004580
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Zorumski, William E. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 5, 2013
Publication Date
October 1, 1987
Subject Category
Acoustics
Report/Patent Number
NAS 1.15:100517
NASA-TM-100517
Accession Number
88N13962
Funding Number(s)
PROJECT: RTOP 505-61-11-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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