APPLICATION OF SECOND-ORDER TURBULENT MODELING TO THE PREDICTION OF RADIATED AERODYNAMIC SOUND

The Ribner formulation of the generation of aerodynamic sound is coupled with predictions of second-order velocity correlations and integral scale to estimate the sound radiated from several complicated jet flows. In particular, it is shown that the sound radiated from a cold swirling jet is greater than from its nonswirling equal thrust counterpart. The noise radiated from the flow field of a multitube suppressor was estimated and compared with an equal thrust diameter Gaussian jet. It is shown that the multitube concept is indeed quieter.

  • Corporate Authors:

    Aeronautical Research Associates of Princeton

    50 Washington Road, P.O. Box 2229
    Princeton, NJ  USA  08540
  • Authors:
    • Bilanin, A J
    • Hirsh, J E
  • Publication Date: 1978-6

Media Info

  • Pagination: 76 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00181691
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NASA-CR-2994
  • Contract Numbers: NAS2-8832
  • Files: TRIS
  • Created Date: Oct 31 1979 12:00AM