855 大領域変動を伴う流体構造連成有限要素解析における適応メッシュ制御(OS7.大規模並列・連成解析と関連話題(4),オーガナイズドセッション)

概要

論文の詳細を見る
In the analysis of moving boundary problems, in which transformation of boundaries cannot be disregard, the handling of computational mesh becomes a big problem, such as flapping motion of insect flight. In the finite element analysis with ALE description for moving boundary problems, the mesh must be well controlled to follow the motion of transformed boundaries. Although the mesh control is usually achieved by smoothing of the mesh, there is the case that an excessive distortion of an element cannot be recovered only by smoothing, when the complex boundaries are greatly transformed. So we need to add/remove internal nodes and correct the connectivity. In this study, we illustrate a series of mesh correcting techniques, and examine the effectiveness with numerical examples.
一般社団法人日本機械学会の論文
2008-11-01