| タイトル | Preconditioning and the limit to the incompressible flow equations |
| 本文（外部サイト） | http://hdl.handle.net/2060/19940009244 |
| 著者（英） | Vanleer, B.; Fiterman, A.; Turkel, E. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1993-07-01 |
| 言語 | eng |
| 内容記述 | The use of preconditioning methods to accelerate the convergence to a steady state for both the incompressible and compressible fluid dynamic equations are considered. The relation between them for both the continuous problem and the finite difference approximation is also considered. The analysis relies on the inviscid equations. The preconditioning consists of a matrix multiplying the time derivatives. Hence, the steady state of the preconditioned system is the same as the steady state of the original system. For finite difference methods the preconditioning can change and improve the steady state solutions. An application to flow around an airfoil is presented. |
| NASA分類 | NUMERICAL ANALYSIS |
| レポートNO | 94N13717
NASA-CR-191500
ICASE-93-42
NAS 1.26:191500
AD-A270533 |
| 権利 | No Copyright |
