| タイトル | Ground-based measurements of the wake vortex characteristics of a B747 aircraft in various configurations |
| 著者（英） | Barber, M. R.; Burnham, D. C.; Tombach, I. H.; Hallock, J. N.; Brashears, M. R.; Zalay, A. D. |
| 著者所属（英） | Department of Transportation|AeroVironment, Inc.|NASA Flight Research Center|Lockheed Missiles and Space Co. |
| 発行日 | 1977-01-01 |
| 言語 | eng |
| 内容記述 | A Boeing 747 aircraft flew 54 passes at low level over ground-based sensors. Vortex velocities were measured by a laser-Doppler velocimeter, an array of monostatic acoustic sounders, and an array of propeller anemometers. Flow visualization of the wake was achieved using smoke and balloon tracers. Preliminary results were obtained on the initial downwash field, the time for merging of the multiple vortices, the velocity fields, vortex decay, and the effects of spoilers and differential flap settings on the dissipation and structure of vortices. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 77A19770
AIAA PAPER 77-9 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/439475 |
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