| タイトル | Abating exhaust noises in jet engines |
| 本文（外部サイト） | http://hdl.handle.net/2060/19740025105 |
| 著者（英） | Schwartz, I. R. |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 1974-08-20 |
| 言語 | eng |
| 内容記述 | A noise abating improvement for jet engines including turbojets, turbofans, turboprops, ramjets, scramjets, and hybrid jets is introduced. A provision is made for an apparatus in the primary and/or secondary flow streams of the engines; the apparatus imparts to the exhaust gases a component rotation or swirl about the engine's longitudinal axis. The rotary component in the exhaust gases causes a substantial suppression of sound energy build up normally produced by an axial flow exhaust system. |
| NASA分類 | COMMUNICATIONS |
| レポートNO | 74N33218 |
| 権利 | No Copyright |
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