| タイトル | Turbulence modeling for computational aerodynamics |
| 著者（英） | Marvin, J. G. |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 1982-01-01 |
| 言語 | eng |
| 内容記述 | The status of turbulence modeling for external aerodynamic flows is reviewed, and closure concepts for the compressible form of the Reynolds-averaged Navier-Stokes equations are briefly outlined to establish a framework for comparison. The importance of experimental requirements for developing and verifying turbulence models is emphasized. Attention is then given to three important flow categories: attached flows, separating and reattaching flows, and trailing-edge flows. Examples of comparisons between experiments and computations for twoand three-dimensional flows are presented to illustrate the status of modeling. It is shown that, for most two-dimensional attached flows, eddy viscosity concepts will probably be adequate. For attached three-dimensional flows, however, eddy-viscosity and Reynolds-stress models are both deficient, failing to predict the proper surface shear-stress in rapidly skewing boundary layers, regardless of whether they are pressure driven or strain driven. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 82A19783
AIAA PAPER 82-0164 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/412321 |
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