Conforming to interface structured adaptive mesh refinement: 3D algorithm and implementation

Conforming to interface structured adaptive mesh refinement: 3D algorithm and implementation
复制标题

符合接口结构化自适应网格细化:3D算法与实现

DOI:
--
复制
发表时间:
2018
影响因子:
4.1
通讯作者:
Soheil Soghrati
Soheil Soghrati
中科院分区:
工程技术2区
文献类型:
--
作者:
Anand Nagarajan;Soheil Soghrati

文献摘要

参考文献

被引文献

相似文献

引入了一种新的非迭代网格生成算法,称为符合界面结构化自适应网格细化 (CISAMR),用于创建复杂几何问题的 3D 有限元模型。 CISAMR 将由四面体单元组成的结构化网格转换为具有低单元纵横比的一致网格。网格的构造从材料界面附近的单元的结构化自适应网格细化开始。然后采用 r 自适应算法重新定位不合格元素的选定节点,然后对其中一小部分进行面交换,以消除具有高纵横比的四面体。最终的一致网格是通过对剩余的非一致元素以及具有悬挂节点的四面体进行亚四面体构建的。除了研究收敛性和分析使用 CISAMR 生成的网格中的元素误差之外,还提供了几个示例问题来展示该方法对具有复杂形态的 3D 问题进行建模的能力。
A new non-iterative mesh generation algorithm named conforming to interface structured adaptive mesh refinement (CISAMR) is introduced for creating 3D finite element models of problems with complex geometries. CISAMR transforms a structured mesh composed of tetrahedral elements into a conforming mesh with low element aspect ratios. The construction of the mesh begins with the structured adaptive mesh refinement of elements in the vicinity of material interfaces. An r-adaptivity algorithm is then employed to relocate selected nodes of nonconforming elements, followed by face-swapping a small fraction of them to eliminate tetrahedrons with high aspect ratios. The final conforming mesh is constructed by sub-tetrahedralizing remaining nonconforming elements, as well as tetrahedrons with hanging nodes. In addition to studying the convergence and analyzing element-wise errors in meshes generated using CISAMR, several example problems are presented to show the ability of this method for modeling 3D problems with intricate morphologies.
DOI: 10.1016/j.cma.2009.06.007
发表时间: 2010-01-01
影响因子: 7.2
作者:
Zhang Y;Hughes TJ;Bajaj CL
通讯作者: Bajaj CL
DOI: 10.1016/j.cma.2005.02.016
发表时间: 2006-02
影响因子: 7.2
作者:
Y. Zhang;C. Bajaj
通讯作者: Y. Zhang;C. Bajaj
DOI: 10.1098/rsta.2008.0090
发表时间: 2008-09
期刊: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子: --
作者:
P. Young;T. Beresford-West;S. Coward;B. Notarberardino;B. Walker;A. Abdul-Aziz
通讯作者: P. Young;T. Beresford-West;S. Coward;B. Notarberardino;B. Walker;A. Abdul-Aziz