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Noise suppressor. [for turbofan engine by incorporating annular acoustically porous elements in exhaust and inlet ducts
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1974 |
| Description | A tuned noise suppressor is described consisting of annular acoustically porous elements for incorporation into the inlet and exhaust ducts of turbofan engines. The apparatus uses sound wave absorption, reflection, and incompatibility for achieving high noise reduction in the short distance. In addition, it has a duct of uniform inner diameter which does not block the duct flow. |
| File Size | 572179 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19740024305 |
| Archival Resource Key | ark:/13960/t6b32n55v |
| Language | English |
| Publisher Date | 1974-08-20 |
| Access Restriction | Open |
| Subject Keyword | Turbofan Engines Acoustic Ducts Aircraft Engines Acoustic Properties Jet Aircraft Noise Noise Reduction Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
