| タイトル | Efficient implementation of essentially non-oscillatory shock capturing schemes, 2 |
| 本文（外部サイト） | http://hdl.handle.net/2060/19880014833 |
| 著者（英） | Shu, Chi-Wang; Osher, Stanley |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1988-04-01 |
| 言語 | eng |
| 内容記述 | Earlier work on the efficient implementation of ENO (essentially non-oscillatory) shock capturing schemes is continued. A new simplified expression is provided for the ENO construction procedure based again on numerical fluxes rather than cell averages. Also considered are two improvements which are labeled ENO-LLF (local Lax-Friedrichs) and ENO-Roe, which yield sharper shock transitions, improved overall efficiency, and lower computational cost than previous implementation of the ENO schemes. Two methods of sharpening contact discontinuities, i.e., the subcell resolution idea of Harten and the artificial compression idea of Yang, which those authors used originally in the cell-average framework, are supplied to the current ENO schemes using numerical fluxes and TVD Runge-Kutta time discretizations. The implementation for nonlinear systems and multi-dimensions is given. Finally, many numerical examples, including a compressible shock turbulence interaction flow calculation, are given. |
| NASA分類 | NUMERICAL ANALYSIS |
| レポートNO | 88N24217
NASA-CR-181656
NAS 1.26:181656
ICASE-88-24 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/146085 |
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