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Flow structure generated by perpendicular blade vortex interaction and implications for helicopter noise predictionsThis report summarizes accomplishments and progress for the period ending April 1995. Much of the work during this period has concentrated on preparation for an analysis of data produced by an extensive wind tunnel test. Time has also been spent further developing an empirical theory to account for the effects of blade-vortex interaction upon the circulation distribution of the vortex and on preliminary measurements aimed at controlling the vortex core size.
Document ID
19950021772
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Devenport, William J. (Virginia Polytechnic Inst. Blacksburg, VA, United States)
Glegg, Stewart A. L. (Florida Atlantic Univ. Boca Raton, FL., United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1995
Subject Category
Aerodynamics
Report/Patent Number
NASA-CR-198590
NAS 1.26:198590
Accession Number
95N28193
Funding Number(s)
CONTRACT_GRANT: NAG1-1539
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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