Translation of Airfoil Trailing Edge Noise Article from 'Revue d'Acoustique'

Abstract

The paper 'Bruit d'un profil dans un e'coulement', by P. Garcia and P. Gerard, has been translated into English. The paper originally was published in Revue d'Acoustique, No 73, 1985 2/2 by Office National d'Etudes et de Recherches Aerospatiales (ONERA). The work, 'Airfoil noise in air flow', describes measurements of the wave number spectrum of the turbulent boundary layer induced pressure field in the vicinity of the airfoil trailing edge. An estimate of radiated noise using modifications to the theories of Howe and Hogdson is made. The paper is significant because of the good agreement between the measurements of Brooks and Hogdson (1980) and a predicted radiated noise level based on a measured trailing edge fluctuating pressure wave number spectrum with measured far field radiated noise. An effect of array element separation distance on measured convection velocity is also shown.

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Document Details

Document Type
Technical Report
Publication Date
Jun 25, 1991
Accession Number
ADA237811

Entities

People

  • R. C. Marboe
  • R. M. Weyer

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Air Flow
  • Boundary Layer
  • Convection
  • Cross Correlation
  • Flow
  • Frequency
  • Frequency Bands
  • Geometry
  • Layers
  • Measurement
  • Pressure Distribution
  • Pressure Measurement
  • Pressure Transducers
  • Radiated Noise
  • Trailing Edges
  • Transducers
  • Turbulent Boundary Layer

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Fluid Mechanics and Fluid Dynamics.
  • Small Business Innovation Research Program (SBIR) EDI Research and Innovation.