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A brief survey of rotary wing induced-velocity theoryAn attempt is made to summarize the state of rotary wing flow fields. The theory is traced from its origin as a momentum theory estimate of average interference, through simple vortex theory, to its present status where it is indispensible in calculating blade loads. A comparison of the theory with flow measurements are presented. The modern efforts toward using more detailed digital methods to obtain blade load distribution are described.
Document ID
19780019142
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Heyson, H. H. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 3, 2013
Publication Date
June 1, 1978
Subject Category
Aerodynamics
Report/Patent Number
NASA-TM-78741
Report Number: NASA-TM-78741
Meeting Information
Meeting: Seminar on Aerodyn. of V/STOL Aircraft and Helicopters
Location: University Park, PA
Country: United States
Start Date: July 31, 1978
End Date: August 1, 1978
Accession Number
78N27085
Funding Number(s)
PROJECT: RTOP 516-50-23-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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