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Application of second-order turbulent modeling to the prediction of radiated aerodynamic sound
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Bilanin, A. J. Hirsh, J. E. |
| Copyright Year | 1978 |
| Description | 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. |
| File Size | 1704187 |
| Page Count | 76 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19780017416 |
| Archival Resource Key | ark:/13960/t3033nf7v |
| Language | English |
| Publisher Date | 1978-06-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Turbulent Flow Jet Flow Jet Aircraft Noise Flow Distribution Estimating Aerodynamic Noise Flow Velocity Mathematical Models Suppressors Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |