Generalized interface conditions for accurate multiblock computation
| Autor: | Sumi, Takahiro, Kurotaki, Takuji, Hiyama, Jun |
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| Jazyk: | japonština |
| Rok vydání: | 2006 |
| Předmět: | |
| Zdroj: | 宇宙航空研究開発機構特別資料: 航空宇宙数値シミュレーション技術シンポジウム2005論文集 = JAXA Special Publication: Proceedings of Aerospace Numerical Simulation Symposium 2005. :35-40 |
| ISSN: | 1349-113X |
| Popis: | In practical computations with structured grids around complex bodies, singular points can be frequently found where an abrupt grid change exists. These singularities pose troublesome problems when some high order and high resolution scheme is applied. An excellent theory has been proposed, which solve the above singular problem by decomposing a computational domain into two blocks along a line or surface which contains the singular points and by imposing accurate characteristic-based interface conditions at the block interface. However, the original theory has limitations on the combination between the adjacent computational coordinate definitions, and these two coordinates have to be the same direction and the same coordinate index at the block interface. For more flexible coordinate arrangement, the original characteristic interface treatment is extended and generalized. Consequently, the coincidence of the computational coordinates in the adjacent blocks becomes unnecessary, and robust multi-block computations can be successfully realized. Numerical test analysis is performed for verification of the new theory, and excellent performance is confirmed. 資料番号: AA0049212005 レポート番号: JAXA-SP-05-017 |
| Databáze: | OpenAIRE |
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