G604 物理空間の結合を伴う流れ場への非構造移動格子有限体積法の適用(GS6-1 数値計算,一般セッション)

抄録

The flow field such that several physical spaces are combined instantly is interesting analysis object in discipline of computational fluid dynamics. So, in this paper, the flow field around an ejection body from the cylinder is computed as an example of above flow field. In this flow field, two physical spaces separated by the body combine due to ejection of the body. However, it is impossible to compute this flow field by using conventional unstructured moving-grid finite-volume method because this method only moves boundaries, doesn't combine boundaries. Thus, in this paper, developed unstructured moving-grid finite-volume method which creates and eliminates computational elements as time passes is applied to this flow field.