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Crescent Wing Planforms Reduce Lift-Dependent DragNew understanding of optimization of design of wing to minimize induced drag developed by use of computational methods that account properly for nonlinear effects of deflected wake, nonplanar shape of wing, and vortex rollup. Crescent planforms are lunate shapes like some found in nature, similar to certain bird wings and fish fins. Theoretical and experimental analyses reveals superior aerodynamic efficiency and improved high-angle-of-attack characteristics.
Document ID
19910000168
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Holmes, Bruce J.
(NASA Langley Research Center, Hampton, VA.)
Vijgen, Paul M. H. W.
(High Technology Corp.)
Vandam, C. P.
(California Univ.)
Date Acquired
August 14, 2013
Publication Date
April 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 4
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
LAR-14015
Accession Number
91B10168
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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