Noise Reduction of EBF Propulsive-Lift Systems

Format:

Conference/Event

Author/Creator:

Gibson, J. S., author.

Conference Name:

National Air Transportation Meeting (1975-05-06 : Hartford, Connecticut, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1975

Summary:

In a recently completed program, static and wind tunnel measurements have been made of the basic noise, noise reduction, and performance characteristics of externally blown flap (EBF) propulsive-lift systems. The static tests were performed on an outdoor model rig. Noise evaluations were made for parameters such as basic system geometry, flap slot dimension variation, elimination of flap slots, sweep angle variation, passive flap trailing edge modifications, active (blowing) trailing edge modifications, and for an ejector/decayer exhaust system. The wind tunnel evaluation determined forward speed effects on EBF systems noise characteristics. The results from the experimental programs are discussed as to their application to full scale short haul aircraft

Notes:

Vendor supplied data

Publisher Number:

750608

Access Restriction:

Restricted for use by site license