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An Analytical Study of the Effects of Jets Located More Than One Jet Diameter Above a Wing at Subsonic Speeds
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HAMPTON VA LANGLEY RESEARCH CENTER
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A procedure has been developed to calculate the effects of blowing two jets over a swept tapered wing at low subsonic speeds. The algorithm used is based on a vortex lattice representation of the wing lifting surface and a line sink-source distribution to simulate the effects of the jet exhaust on the wing lift and drag. The method is limited to those cases where the jet exhaust does not intersect or wash the wing. The predictions of this relatively simple procedure are in remarkably good agreement with experimentally measured interference lift and interference induced drag. Upper-surface blowing, Aerodynamics, Interference lift, Interference drag, Swept wings, Jet effects, Tapered wings, Subsonic flow.
APPROVED FOR PUBLIC RELEASE