| タイトル | Effect of inflow control on inlet noise of a cut-on fan |
| 著者（英） | Woodward, R. P.; Glaser, F. W. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1980-06-01 |
| 言語 | eng |
| 内容記述 | A cut-on, high tip speed fan stage was acoustically tested with three configurations of an inflow control device in the NASA Lewis anechoic chamber. Although this was a cut-on design, rotor-inflow interaction appeared to be a much stronger source of blade passing tone radiated from the inlet than rotor-stator interaction for the 1.6 mean rotor chord separation. Aft external suction applied to the area where the inflow control device joined the inlet produced a further reduction in blade passing tone suggesting that disturbances in the forward flow on the outside of the inlet were superimposed on the inlet boundary layer and were a significant source of tone noise. |
| NASA分類 | ACOUSTICS |
| レポートNO | 80A35993
AIAA PAPER 80-1049 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/421739 |
