| タイトル | The acoustics of aircraft engine-duct systems |
| 著者（英） | Nayfeh, A. H.; Kaiser, J. E.; Telionis, D. P. |
| 発行日 | 1973-10-01 |
| 言語 | eng |
| 内容記述 | Noise generated in aircraft engines is usually suppressed by acoustically treating the engine ducts. The optimization of this treatment requires an understanding of the transmission and attenuation of the acoustic waves. A critical review is presented of the state of the art regarding methods of determining the transmission and attenuation parameters and the effect on these parameters of (1) acoustic properties of liners, (2) the mean velocity, including uniform and shear profiles and nonparallel flow, (3) axial and transverse temperature gradients, (4) slowly and abruptly varying cross sections, and (5) finite-amplitude waves and nonlinear duct liners. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 74A12215
AIAA PAPER 73-1153 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/454873 |
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