| タイトル | Noise prediction for jetstar prop-fan test |
| 本文（外部サイト） | http://hdl.handle.net/2060/19810006276 |
| 著者（英） | Greene, G. C.; Farassat, F.; Martin, R. M. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1980-12-01 |
| 言語 | eng |
| 内容記述 | The acoustic calculations reported in this memorandum are for two model prop-fan designs (SR-2 and SR-3 blades) scheduled for test on top of Jetstar aircraft. The predicted acoustic pressure signatures and spectra for selected microphone positions on the fuselage and operating conditions are presented. A detailed presentation of the input data, the acoustic results, and the corrections for microphone fuselage reflection are included. The general trend observed in these calculations is that the acoustically optimized model (using SR-3 blades) is substantially quieter than the model with SR-2 blades. This latter design has conventional straight blades. |
| NASA分類 | ACOUSTICS |
| レポートNO | 81N14790
NASA-TM-81916 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/170462 |
