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Effect of external jet-flow deflector geometry on OTW aero-acoustic characteristicsThe effect of geometry variations in the design of external deflectors for use with OTW configurations was studied at model scale and subsonic jet velocities. Included in the variations were deflector size and angle as well as wing size and flap setting. A conical nozzle (5.2-cm diameter) mounted at 0.1 chord above and downstream of the wing leading edges was used. The data indicate that external deflectors provide satisfactory take-off and approach aerodynamic performance and acoustic characteristics for OTW configurations. These characteristics together with expected good cruise aerodynamics, since external deflectors are storable, may provide optimum OTW design configurations.
Document ID
19760058411
Document Type
Conference Paper
Authors
Von Glahn, U. (NASA Lewis Research Center Cleveland, OH, United States)
Groesbeck, D. (NASA Lewis Research Center V/STOL and Noise Div., Cleveland, Ohio, United States)
Date Acquired
August 8, 2013
Publication Date
July 1, 1976
Subject Category
AERODYNAMICS
Report/Patent Number
AIAA PAPER 76-499
Meeting Information
Aero-Acoustics Conference(Palo Alto, CA)
Distribution Limits
Public
Copyright
Other