| タイトル | Circulation control technology applied to propulsive high lift systems |
| 著者（英） | Harris, M. J.; Nichols, J. H., Jr.; Eppel, J. C.; Shovlin, M. D.; Englar, R. J. |
| 著者所属（英） | Naval Ship Research and Development Center|NASA Ames Research Center |
| 発行日 | 1984-01-01 |
| 言語 | eng |
| 内容記述 | Technology developed for the Circulation Control Wing high-lift system has been extended to augment lift by entraining and redirecting engine thrust. Ejecting a thin jet sheet tangentially over a small curved deflecting surface adjacent to the slipstream of a turbofan engine causes the slipstream to flow around that deflecting surface. The angle of deflection is controlled pneumatically by varying the momentum of the thin jet sheet. The downward momentum of the slipstream enhances wing lift. This concept of pneumatically deflecting the slipstream has been applied to an upper surface blowing high-lift system and to a thrust deflecting system. The capability of the pneumatic upper surface blowing system was demonstrated in a series of investigations using a wind tunnel model and the NASA Quiet Short-haul Research Aircraft (QSRA). Full-scale thrust deflections greater than 90 deg were achieved. This mechanically simple system can provide increased maneuverability, heavy lift or overload capability, or short takeoff and landing performance. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 85A39205
SAE PAPER 841497 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/390786 |
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