EFFECT OF AIRFOIL MEAN LOADING ON CONVECTED GUST INTERACTION NOISE.

M. R. Myers, Edward J Kerschen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Behind the airfoil a wake region, which is similar to the transition zone between illuminated and shadow zones in optical problems, is present. In the outer region, far away from the airfoil edges and wake, the solution has a geometric acoustics behavior. The airfoil steady loading affects the noise generation at the leading and trailing edges in significantly different ways. The increase in leading edge noise scales on the local leading edge steady loading, rather than on the airfoil total lift. The trailing edge is essentially a scatterer of the leading edge noise, and here it is the airfoil total loading that affects the amplitude of the scattered field. Parametric calculations are presented which illustrate that, at high frequencies, moderate levels of airfoil steady loading can dramatically increase the noise level produced by airfoil convected gust interactions.

Original languageEnglish (US)
Title of host publicationAIAA Paper
PublisherAIAA
StatePublished - 1984

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Airfoils
Acoustics

ASJC Scopus subject areas

  • Engineering(all)

Cite this

EFFECT OF AIRFOIL MEAN LOADING ON CONVECTED GUST INTERACTION NOISE. / Myers, M. R.; Kerschen, Edward J.

AIAA Paper. AIAA, 1984.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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