24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-2.2.3

ON THE SHIELDING OF ENGINE NOISE BY AN AIRCRAFT WING

L. M. B. C. Campos, F. J. P. Lau
Secção de Mecânica Aeroespacial, ISR, Instituto Superior Técnico, 1049-001, Lisboa Codex, Portugal

Keywords: noise, wing, shielding, Huyghens’ principle

The shielding of noise radiation by interposing a flat plate between the observer and source is considered, to simulate the effect of engine position relative to the wing, on fly-over noise, for an airliner with overwing mounted engines, over the noise spectrum of relevance to airport noise.

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