| タイトル | Direct drag measurement on thin-element riblets with suction and blowing |
| 著者（英） | Wilkinson, Stephen P. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1988-01-01 |
| 言語 | eng |
| 内容記述 | Turbulent, direct drag has been measured for a series of riblet models in air with continuous, low-level suction or blowing applied through narrow streamwise slots located at the peak, base, or valley of the rectangularly shaped riblets. Riblet spacing was approximately that of low-speed wall streaks. The models were designed to test whether wall vortices which are known to occur along widely spaced riblets are integral to turbulence production by attempting to alter them with localized suction or blowing. The drag data show trends that are consistent with reduced or enhanced inflectional breakdown of wall vortices. The trends, however, may also be explained by more fundamental mean-flow effects. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 88A48822
AIAA PAPER 88-3670 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/369385 |
|
