AEOLIAN TONES ASSOCIATED WITH RESONANT VIBRATION.

Abstract

Measurements of oscillating lift coefficient, spanwise correlation length, Strouhal number, and radiated sound intensity were made on the same cylinder under the same test conditions over a Reynolds number range of 4000 to 6450. These measurements verified that the Curle theory of dipole radiation as expressed by Phillips for the Aeolian tone holds for a cylinder resonantly excited by a periodic wake in air. For small amplitude vibration, the increase of oscillating lift coefficient with Reynolds number accounts for the increase of sound intensity. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1969
Accession Number
AD0695066

Entities

People

  • Carl E. Hanson
  • Patrick Leehey

Organizations

  • Massachusetts Institute of Technology

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Coefficients
  • Fluid Dynamics
  • Fluid Mechanics
  • Intensity
  • Measurement
  • Mechanics
  • Radiation
  • Reynolds Number
  • Strouhal Number
  • Vibration

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Aerodynamics/Aeronautics.