| タイトル | Notes on Accuracy of Finite-Volume Discretization Schemes on Irregular Grids |
| 本文（外部サイト） | http://hdl.handle.net/2060/20110011294 |
| 著者（英） | Diskin, Boris; Thomas, James L. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 2011-01-01 |
| 言語 | eng |
| 内容記述 | Truncation-error analysis is a reliable tool in predicting convergence rates of discretization errors on regular smooth grids. However, it is often misleading in application to finite-volume discretization schemes on irregular (e.g., unstructured) grids. Convergence of truncation errors severely degrades on general irregular grids; a design-order convergence can be achieved only on grids with a certain degree of geometric regularity. Such degradation of truncation-error convergence does not necessarily imply a lower-order convergence of discretization errors. In these notes, irregular-grid computations demonstrate that the design-order discretization-error convergence can be achieved even when truncation errors exhibit a lower-order convergence or, in some cases, do not converge at all. |
| NASA分類 | Mathematical and Computer Sciences (General) |
| レポートNO | NF1676L-8756 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
