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Helicopter rotor loads using a matched asymptotic expansion techniqueThe theoretical basis and computational feasibility of the Van Holten method, and its performance and range of validity by comparison with experiment and other approximate methods was examined. It is found that within the restrictions of incompressible, potential flow and the assumption of small disturbances, the method does lead to a valid description of the flow. However, the method begins to break down under conditions favoring nonlinear effects such as wake distortion and blade/rotor interaction.
Document ID
19820013282
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Pierce, G. A. (Georgia Inst. of Tech. Atlanta, GA, United States)
Vaidyanathan, A. R. (Georgia Inst. of Tech. Atlanta, GA, United States)
Date Acquired
September 4, 2013
Publication Date
May 1, 1981
Subject Category
Aerodynamics
Report/Patent Number
NASA-CR-165742
NAS 1.26:165742
Accession Number
82N21156
Funding Number(s)
CONTRACT_GRANT: NAS1-16222
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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