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Leading- and trailing-edge flaps on supersonic delta wings

Authors: Gloria Hernandez; Richard M. Wood; Robert E. Collins;

Leading- and trailing-edge flaps on supersonic delta wings

Abstract

An experimental investigation has been conducted to evaluate the effectiveness of leading- and trailing-edge flaps on a flat wing and a cambered wing at supersonic speeds. Experimental testing was conducted at Mach numbers of 1.6,1.8, 2.0, and 2.16. The study geometry consisted of a clipped delta planform with leading edge swept back 50 deg and trailing edge swept forward 25 deg. Both wings were attached to a generic fuselage and both were configured with identical leading- and trailing-edge flaps. Analysis of the data showed that flap effects are similar for both flat and cambered wings for all aerodynamic parameters. The drag penalty with trailing-edge deflections is lower for the cambered wing compared to the flat wing. The drag penalty on the cambered wing, however, is higher with leading-edge deflections compared to the flat wing. Lift values for the trailing-edge deflections were slightly lower for the cambered wing. Both wings experienced a decrement in lift loss as the Mach number increased. The values for the pitching-moment increments are slightly larger on the flat wing with trailing-edge deflections and smaller on the same wing with leading-edge deflections when compared to the cambered wing.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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