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Analysis of tangential slot blowing on F/A-18 isolated forebodyGeneration of significant side forces and yawing moments on an F/A-18 fuselage through tangential slot blowing is analyzed using computational fluid dynamics. The effects of freestream Mach number, jet exit conditions, jet length, and jet location are studied. The effects of over- and under-blowing on force and moment production are analyzed. Non-time-accurate solutions are obtained to determine the steady-state side forces, yawing moments, and surface pressure distributions generated by tangential slot blowing. Time-accurate solutions are obtained to study the force onset time lag of tangential slot blowing. Comparison with available experimental data from full-scale wind tunnel and sub-scale wind tunnel tests are made. This computational analysis complements the experimental results and provides a detailed understanding of the effects of tangential slot blowing on the flow field about the isolated F/A-18 forebody. Additionally, it extends the slot-blowing database to transonic maneuvering Mach numbers.
Document ID
19960033276
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Gee, K.
(MCAT Inst. Moffett Field, CA United States)
Rizk, Y.
(NASA Ames Research Center Moffett Field,CA United States)
Schiff, L.
(NASA Ames Research Center Moffett Field,CA United States)
Date Acquired
August 17, 2013
Publication Date
June 23, 1994
Subject Category
Aerodynamics
Report/Patent Number
NASA-TM-111696
AIAA Paper 95-1831
NAS 1.15:111696
Meeting Information
Meeting: AIAA Applied Aerodynamics Conference
Location: Colorado Springs, CO
Country: United States
Start Date: June 20, 1994
End Date: June 23, 1994
Sponsors: American Inst. of Aeronautics and Astronautics
Accession Number
96N72107
Distribution Limits
Public
Copyright
Public Use Permitted.
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