並列タイトル等On the Accuracy of Upwind Biased Finite Volume Method
タイトル(掲載誌)航空宇宙技術研究所特別資料 = Special Publication of National Aerospace Laboratory SP-8
一般注記An improvement of the spatial accuracy of an upwind biased finite volume scheme adopting a pre-processing approach is investigated. In the pre-processing approach, the cell face values of the dependent variables are estimated with a higher order spatial accuracy at first, usually based on the Taylor expansion in the computational space, then numerical fluxs there are determined by an appropriate method such as an upwind scheme. A sufficient grid smoothness in the physical space is implicitly assumed when the Taylor expansion is applied to find the averaged slopes in the computational space. This can lead to a possible generation of numerical errors on the skewed grid system. In the present study, we try to fit the distribution of conservative variables rather in the physical space with the accuracy up to a third order, then find the averaged slopes in each cell. Numerical experiments comparing with various methods of finding the relevant averaged slopes including the present one are carried out
資料番号: NALSP0008026
レポート番号: NAL SP-8
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース(IRDB)(機関リポジトリ)
提供元機関・データベース宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ