arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1507.08784math.NAcs.NA
收藏

利用小网格变形进行抛物线移动和生长界面问题的数值模拟

Numerical simulation of parabolic moving and growing interface problems using small mesh deformation

Johann Radon Institute for Computational and Applied Mathematics (RICAM), Austrian Academy of Sciences(奥地利科学院约翰·拉德纳计算与应用数学研究所);Institute of Computational Mathematics, Johannes Kepler University(约瀚内斯·开普勒大学计算数学研究所)

Ulrich Langer, Huidong Yang

AI总结:

本文提出一种方法,通过结合任意拉格朗日-欧拉方法与小局部网格变形,解决三维移动和生长界面问题,并采用代数多网格方法求解线性方程组。

摘要:

在本工作中,我们开发了一种切割方法,用于求解具有移动和生长界面的三维问题。该新方法通过将参考域分解为宏元并结合任意拉格朗日-欧拉方法,能够处理浸没物体的大位移或变形。模型抛物线界面热传导问题的向量值函数在时间与空间离散后所得到的代数方程组,通过全部一次或分离的代数多网格方法求解。

英文摘要:

In this work, we develop a cutting method for solving problems with moving and growing interfaces in 3D. This new method is able to resolve large displacement or deformation of immersed objects by combining the Arbitrary Lagrangian-Eulerian method with only small local mesh deformation defined on the reference domain, that is decomposed into the macro-elements. The linear system of algebraic equations arising after the temporal and spatial discretizations of a model parabolic interface heat-conduction-like problem with vector-valued functions is solved by either an all-at-once or a segregated algebraic multigrid method.

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。

↑