| タイトル | Numerical simulation of vortical flows over a strake-delta wing |
| 著者（英） | Fujii, Kozo; Schiff, Lewis B. |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 1987-06-01 |
| 言語 | eng |
| 内容記述 | The vortical flow fields over a double-delta wing with sweep angles 80 and 60 deg are investigated by means of numerical simulations based on the LU-ADI code of Fujii and Obayashi (1986) for the three-dimensional thin-layer Navier-Stokes equations. The results obtained using an 850,000-point grid at angle of attack alpha = 6-40 deg are presented graphically, compared with experimental data, and characterized in detail. Qualitatively accurate simulations are obtained for transition phenomena such as strake/wing-vortex interaction at alpha = 12 deg, bubble-type vortex breakdown near the trailing edge at alpha = 30 deg, and spiral-type breakdown at alpha = 35 deg. It is suggested that quantitative simulations can be achieved at higher grid resolution. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 87A44913
AIAA PAPER 87-1229 |
| 権利 | Copyright |
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