ANALYSIS OF TANGENTIAL SLOT BLOWING ON F A-18 ISOLATED FOREBODY/

Citation
K. Gee et al., ANALYSIS OF TANGENTIAL SLOT BLOWING ON F A-18 ISOLATED FOREBODY/, Journal of aircraft, 32(5), 1995, pp. 1040-1046
Citations number
NO
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Aerospace Engineering & Tecnology
Journal title
ISSN journal
0021-8669
Volume
32
Issue
5
Year of publication
1995
Pages
1040 - 1046
Database
ISI
SICI code
0021-8669(1995)32:5<1040:AOTSBO>2.0.ZU;2-6
Abstract
The generation of significant side forces and yawing moments on an F/A -18 fuselage through tangential slot blowing is analyzed using computa tional fluid dynamics. The effects of freestream Mach number, jet exit conditions, jet length, and jet location are studied. The effects of over- and underblowing on force and moment production are analyzed. No n-time-accurate solutions are obtained to determine the steady-state s ide forces, yawing moments, and surface pressure distributions generat ed by tangential slat 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 subs cale wind-tunnel tests are made. This computational analysis complemen ts the experimental results and provides a detailed understanding of t he effects of tangential slot blowing on the flowfield about the isola ted F/A-18 forebody. Additionally, it extends the slot-blowing databas e to transonic maneuvering Mach numbers.