| タイトル | Combined riblet and lebu drag reduction system |
| 本文（外部サイト） | http://hdl.handle.net/2060/19880004689 |
| 著者（英） | Anders, John B.; Walsh, Michael J.; Hefner, Jerry N. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1987-11-17 |
| 言語 | eng |
| 内容記述 | The invention is a system of flow control devices which result in reduced skin friction on aerodynamic and hydrodynamic surfaces. The devices cause a breakup of large-scale disturbances in the boundary layer of the flow field. The riblet device acts to reduce disturbances near the boundary layer wall by the use of longitudinal striations forming V-shaped grooves. These grooves are dimensional on the order of the wall vortices and turbulent burst dimensions. The large eddy breakup device is a small strip or airfoil which is suspended in the upper region of the boundary layer. Various physical mechanisms cause a disruption of the large-scale vortices. The combination of the devices of this invention result in a substantial reduction in skin friction drag. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 88N14071 |
| 権利 | No Copyright |
