Linear-subsonic and nonlinear-transonic similarity rules are presented for a finite-span jet-flapped wing with partial or full-span blowing. The nonlinear rules are new and the linear rules are more general than previous ones. The rules employ a new second-order jet-momentum coefficient similarity parameter which includes the effect of the jet-supply pressure ratio. The second-order effect is found to be significant only when convergent-jet-nozzle choking occurs at a low flight Mach number. Although the experimental data available for validation of the linear rules is sparse and uncertain, some comparisons are made and fair agreement is achieved. Camber-line effects are found to be significant. There is no experimental data suitable for validation of the nonlinear rules. Motivation for this work is the possible use of pure jet flaps for maneuvering combat aircraft at high subsonic and transonic speeds. (Kursetz)
Subsonic and transonic similarity rules for jet-flapped wings
Subsonische und transsonische Aehnlichkeitsgesetze fuer Strahlklappenfluegel
AIAA-Papers ; Jan ; 1-10
1979
10 Seiten, 5 Bilder, 12 Quellen
Aufsatz (Konferenz)
Englisch
Subsonic similarity rule for jet-flapped airfoil
AIAA | 1971
|Transonic similarity rules for lifting wings
Engineering Index Backfile | 1952
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