Noise Tests of a Mixer Nozzle-externally Blown Flap System PDF Download
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Author: Jack H. Goodykoontz Publisher: ISBN: Category : Flaps (Airplanes) Languages : en Pages : 60
Book Description
Noise tests were conducted on a large scale model of an externally blown flap lift augmentation system, employing a mixer nozzle. The mixer nozzle consisted of seven flow passages with a total equivalent diameter of 40 centimeters. With the flaps in the 30 - 60 deg setting, the noise level below the wing was less with the mixer nozzle than when a standard circular nozzle was used. At the 10 - 20 deg flap setting, the noise levels were about the same when either nozzle was used. With retracted flaps, the noise level was higher when the mixer nozzle was used.
Author: Jack H. Goodykoontz Publisher: ISBN: Category : Flaps (Airplanes) Languages : en Pages : 60
Book Description
Noise tests were conducted on a large scale model of an externally blown flap lift augmentation system, employing a mixer nozzle. The mixer nozzle consisted of seven flow passages with a total equivalent diameter of 40 centimeters. With the flaps in the 30 - 60 deg setting, the noise level below the wing was less with the mixer nozzle than when a standard circular nozzle was used. At the 10 - 20 deg flap setting, the noise levels were about the same when either nozzle was used. With retracted flaps, the noise level was higher when the mixer nozzle was used.
Author: Jack H. Goodykoontz
Author: Jack H. Goodykoontz
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