| タイトル | Numerical simulation of transonic flows in diffusers |
| 著者（英） | Coakley, T. J.; Bergmann, M. Y.; Liou, M.-S. |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 1981-06-01 |
| 言語 | eng |
| 内容記述 | Numerical simulations were made of two-dimensional transonic flows in diffusers, including flow separation induced by a shock or adverse pressure gradient. The mass-averaged, time-dependent, compressible Navier-Stokes equations, simplified by the thin-layer approximation, were solved using MacCormack's hybrid method. The eddy-viscosity formulation was described by the Wilcox-Rubesin's two-equation, k-omega model. Detailed comparison of the computed results with measurements showed good agreement in all cases, including one with massive separation induced by a strong shock. The computation correctly predicted the details of a distinct lambda shock pattern, closely duplicating the configuration observed experimentally in spark-schlieren photographs. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 81A38097
AIAA PAPER 81-1240 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/416234 |
|
