Application of second-order turbulent modeling to the prediction of radiated aerodynamic sound
- Author:
- Hirsh, J. E.
- Published:
- Jun 1, 1978.
- Physical Description:
- 1 electronic document
- Additional Creators:
- Bilanin, A. J.
Online Version
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- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access - Summary:
- 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.
- Other Subject(s):
- Collection:
- NASA Technical Reports Server (NTRS) Collection.
- Note:
- Document ID: 19780017416.
Accession ID: 78N25359.
NASA-CR-2994. - Terms of Use and Reproduction:
- No Copyright.
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