NASA NTRS · 19880034780
Transonic low aspect ratio wing-winglet designs
Abstract
A numerical design study has been conducted to ascertain the potential of winglets as a drag-reducing measure at high subsonic Mach numbers for low aspect ratio wings. The four variants of the winglet concept studied are a 'detuned' winglet with decreased incidence at the wing-winglet juncture; a steerable winglet; more gradual pressure recovery at the wing and winglet trailing edges; and the application of supercritical airfoil technology. A further study is conducted to assess the accuracy of the numerical code's predicted pressure drag values.
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Kuhlman, John M., Cerney, Michael J., Liaw, Paul. 1988-01-01. Transonic low aspect ratio wing-winglet designs. https://ntrs.nasa.gov/citations/19880034780
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