arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1706.09672math.NAcs.NA
收藏

有限元法在最小曲面近似中的应用:算法与网格细化

Finite element approximations of minimal surfaces: algorithms and mesh refinement

Ehime University(爱媛大学)

Aymeric Grodet, Takuya Tsuchiya

AI总结:

本文提出一种低成本方法改进最小曲面的有限元近似,通过局部边界网格细化避免崩溃,并扩展到部分自由边界问题,给出收敛定理。

摘要:

有限元近似最小曲面不总是精确,甚至可能完全崩溃。本文提供一种计算成本低的方法,通过局部边界网格细化改进近似。通过指出崩溃是局部近似差的极限情况,证明该方法可避免崩溃。还扩展到部分自由边界问题,给出收敛定理。文中给出了数值例子展示方法带来的改进。

英文摘要:

Finite element approximations of minimal surface are not always precise. They can even sometimes completely collapse. In this paper, we provide a simple and inexpensive method, in terms of computational cost, to improve finite element approximations of minimal surfaces by local boundary mesh refinements. By highlighting the fact that a collapse is simply the limit case of a locally bad approximation, we show that our method can also be used to avoid the collapse of finite element approximations. We also extend the study of such approximations to partially free boundary problems and give a theorem for their convergence. Numerical examples showing improvements induced by the method are given throughout the paper.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑