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A study of the blown flap/jet flap analogyA study of the blown flap/jet flap analogy has been undertaken. Analytical predictions were made using both improved lifting line and optimized vortex lattice models for the jet flap. Results were compared with experimental data for three propulsive lift systems; the jet augmented flap, the externally blown flap, and the upper surface blown flap. Force increments due to changes in geometry and jet parameters were well approximated in most cases, although the absolute values of the aerodynamic forces were usually underestimated. The relatively simple jet-flap models gave performance predictions of accuracy comparable to more complex analyses.
Document ID
19790035531
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hough, G. R.
(Vought Advanced Technology Center Inc., Dallas, Tex., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1979
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 79-0119
Meeting Information
Meeting: American Institute of Aeronautics and Astronautics, Aerospace Sciences Meeting
Location: New Orleans, LA
Start Date: January 15, 1979
End Date: January 17, 1979
Sponsors: Astronautics, American Institute of Aeronautics
Accession Number
79A19544
Funding Number(s)
CONTRACT_GRANT: NAS2-8115
Distribution Limits
Public
Copyright
Other

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