| タイトル | Spatial and temporal adaptive procedures for the unsteady aerodynamic analysis of airfoils using unstructured meshes |
| 著者（英） | Hooker, John R.; Batina, John T.; Williams, Marc H. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1992-07-01 |
| 言語 | eng |
| 内容記述 | An algorithm which combines spatial and temporal adaption for the time integration of the two dimensional Euler equations on unstructured meshes of triangles is presented. Spatial adaption involves mesh enrichment to add elements in high gradient regions of the flow and mesh coarsening to remove elements where they are no longer needed. Temporal adaption is a time accurate, local time stepping procedure which integrates the flow equations in each cell according to the local numerical stability constraint. The flow solver utilizes a four stage Runge-Kutta time integration scheme with an upwind flux-split spatial discretization. Results obtained using spatial and temporal adaption indicate that highly accurate solutions can be obtained with a significant savings of computing time over global time stepping. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 92N29445
NASA-TM-107635
NAS 1.15:107635 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/230926 |
