Japan Aerospace Exploration Agency Institute of Space Technology and Aeronautics
Japan Aerospace Exploration Agency Institute of Space Technology and Aeronautics
Sanko Software Ltd.
出版者
宇宙航空研究開発機構
出版者（英）
Japan Aerospace Exploration Agency (JAXA)
雑誌名
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
雑誌名(英)
JAXA Special Publication: Proceedings of Aerospace Numerical Simulation Symposium 2005
巻
JAXA-SP-05-017
ページ
35 - 40
発行年
2006-02-28
抄録（英）
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.
高精度マルチブロック計算のための一般化インターフェイス条件
49212005.pdf
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