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Ground effects on USB configurationsRecent investigations of ground effects on aerodynamic characteristics have been stimulated by the interest in powered-lift STOL airplanes. The ground effects on upper-surface-blowing (USB) configurations may involve change in both the circulation forces and the jet reaction forces. In this note, a theoretical method is proposed for predicting these effects. It is shown that the predicted results agree well with available experimental data. In particular, the wing-alone method is shown to be incapable of predicting the ground effects of USB configurations.
Document ID
19790037512
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lan, C. E.
(Kansas, University Lawrence, Kan., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1979
Publication Information
Publication: Journal of Aircraft
Volume: 16
Subject Category
Aerodynamics
Accession Number
79A21525
Funding Number(s)
CONTRACT_GRANT: NSG-1139
Distribution Limits
Public
Copyright
Other

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