Computational prediction of flow-generated sound

• Meng Wang ^[3] ; Jonathan B. Freund ^[1] ; Sanjiva K. Lele ^[2]
  1. [1] University of Illinois at Urbana Champaign

     University of Illinois at Urbana Champaign

     Township of Cunningham, Estados Unidos

     
  2. [2] Stanford University

     Stanford University

     Estados Unidos

     
  3. [3] Ames Research Center

     Ames Research Center

     Estados Unidos

     

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• Localización: Annual review of fluid mechanics, ISSN 0066-4189, Nº. 38, 2006, págs. 483-512
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • This article provides a critical review of computational techniques for flow-noise prediction and the underlying theories. Hybrid approaches, in which the turbulent noise source field is computed and/or modeled separately from the far-field calculation, are afforded particular attention. Numerical methods and modern flow simulation techniques are discussed in terms of their suitability and accuracy for flow-noise calculations. Other topics highlighted include some important formulation and computational issues in the application of aeroacoustic theories, generalized acoustic analogies with better accounts of flow-sound interaction, and recent computational investigations of noise-control strategies. The review ends with an analysis of major challenges and key areas for improvement in order to advance the state of the art of computational aeroacoustics.