Experimental data of the peak axial-velocity decay in a moving airstream are presented for several types of nozzles. The nozzles include a six-tube mixer nozzle of a type considered for reduction of jet-flap interaction noise for externally-blown-flap STOL aircraft. The effect of secondary flow on the core flow velocity decay of a bypass nozzle is also discussed. Tentative correlation equations are suggested for the configurations evaluated. Recommendations for minimizing forward velocity effects on velocity decay and jet-flap interaction noise are made.
Forward flight effects on mixer nozzle design and noise considerations for STOL externally blown flap systems
Aircraft Design Flight Test and Oper. Meeting ; 1972 ; Los Angeles
1972-01-01
Conference paper
No indication
English
Forward Flight Effects on Externally Blown Flap Noise
AIAA | 1978
|Noise tests of a mixer nozzle : externally blown flap system
TIBKAT | 1973
|NTRS | 1972
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