| タイトル | Variable-grid-size transformation for solving nonsimilar laminar and turbulent boundary-layers |
| 著者（英） | Cline, D. D.; Bertin, J. J. |
| 著者所属（英） | Sandia National Labs.|Texas Univ. |
| 発行日 | 1980-01-01 |
| 言語 | eng |
| 内容記述 | A numerical code has been developed to calculate nonsimilar boundary-layers (either laminar, transitional, or turbulent). The formulation of the equations of motion employs two transformations for the y-coordinate which provide a dense spacing of points near the wall and, therefore, can provide engineering solutions using relatively few points in the y-direction. The turbulent viscosity is correlated in terms of a length scale, which is in turn a function of the physical y-coordinate and of the mean-flow velocity gradient at that point. The boundary-layer solutions computed using the present code are compared with theoretical solutions presented by other investigators and with data from the literature. Comparisons with the data indicate that the theoretical solutions provide suitable values for the pitot-pressure profiles and the displacement thickness. Significant differences exist in the one comparison between the theoretical and the experimental heat-transfer rates for hypersonic flow past a flat plate. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 81A10166 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/419168 |
