| タイトル | On the structure, interaction, and breakdown characteristics of slender wing vortices at subsonic, transonic, and supersonic speeds |
| 著者（英） | Rogers, Lawrence W.; Erickson, Gary E.; Schreiner, John A. |
| 著者所属（英） | Air Force Wright Aeronautical Labs.; NASA Ames Research Center; NASA Langley Research Center |
| 発行日 | 1989-08-01 |
| 言語 | eng |
| 内容記述 | Slender wing vortex flows at subsonic, transonic, and supersonic speeds were investigated in a 6 x 6 ft wind tunnel. Test data obtained include off-body and surface flow visualizations, wing upper surface static pressure distributions, and six-component forces and moments. The results reveal the transition from the low-speed classical vortex regime to the transonic regime, beginning at a freestream Mach number of 0.60, where vortices coexist with shock waves. It is shown that the onset of core breakdown and the progression of core breakdown with the angle of attack were sensitive to the Mach number, and that the shock effects at transonic speeds were reduced by the interaction of the wing and the lead-edge extension (LEX) vortices. The vortex strengths and direct interaction of the wing and LEX cores (cores wrapping around each other) were found to diminish at transonic and supersonic speeds. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 89A50806
AIAA PAPER 89-3345 |
| 権利 | Copyright |
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