日本航空宇宙学会論文集
Online ISSN : 2432-3691
Print ISSN : 1344-6460
ISSN-L : 1344-6460
論文
解適合非構造移動格子有限体積法
山川 勝史松野 謙一
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2004 年 52 巻 607 号 p. 348-354

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In this paper, we propose a new adaptive grid generative method on unstructured grid system for unsteady compressible flows. For unsteady adaptive grid generation, it is important to assure geometric conservation laws on moving grid system according to motion of flow solution. To solve the issue, we adopt volume integration to a control volume on the space-time unified domain. That is, we apply a finite volume method on a moving grid. While, unstructured grid system is flexible and suitable for flows with complex boundary. Thus, an adaptive grid generation method and the moving-grid finite-volume method are combined and developed on unstructured grid system. The method is described for two-dimensional flows and validated using simple test problems. Application to shock-tube problem and supersonic duct flow problem have shown a promising feature of the method.

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© 2004 The Japan Society for Aeronautical and Space Sciences
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