| タイトル | Vortex lift augmentation by suction on a 60 deg swept Gothic wing |
| 著者（英） | Jackson, L. R.; Huffman, J. K.; Taylor, A. H. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1982-01-01 |
| 言語 | eng |
| 内容記述 | An experimental investigation was conducted in the Langley high-speed 7- by 10-foot wind tunnel to determine the aerodynamic performance of suction applied near the wing tips above the trailing edge of a 60 deg swept Gothic wing. Moveable suction inlets were symmetrically mounted in the proximity of the trailing edge, and the amount of suction was varied to maximize wing lift. Tests were conducted at Mach 0.15, 0.30, and 0.45, and the angle of attack was varied from -4 to 50 deg. The suction augmentation increases the lift coefficient over the entire range of angle of attack. The lift improvement exceeds the unaugmented wing lift by over 20%. Moreover, the augmented lift exceeds the lift predicted by vortex lattice theory to 30 deg angle of attack. Suction augmentation is postulated to strengthen the vortex system by increasing its velocity and making it more concentrated. This causes the vortex breakdown to be delayed to a higher angle of attack |
| NASA分類 | AERODYNAMICS |
| レポートNO | 82A17856
AIAA PAPER 82-0231 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/412555 |
|
