NASA NTRS · 19910000168
Crescent Wing Planforms Reduce Lift-Dependent Drag
Abstract
New 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.
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Holmes, Bruce J., Vijgen, Paul M. H. W., Vandam, C. P.. 1991-04-01. Crescent Wing Planforms Reduce Lift-Dependent Drag. https://ntrs.nasa.gov/citations/19910000168
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