A Prediction method for aerodynamic sound produced by closely spaced elements in air ducts

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Abstract

Predictive equations are developed that permit the determination of sound power radiated by two closely spaced spoilers. These equations require only simple flow parameters and corrected normalized spectrum K2(St). Using this technique, the sound level and spectral distribution of the additional acoustic energy produced by the combination of any given duct discontinuities in any given duct air flow velocities is predicted.
Original languageEnglish
Pages (from-to)743-753
Number of pages11
JournalJournal of Sound and Vibration
Volume229
Issue number3
DOIs
Publication statusPublished - 1 Jan 2000

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Mechanics of Materials
  • Mechanical Engineering

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