A local rezoning and remapping method for unstructured mesh

Abstract
This paper presents explicit description of the rezoning and remapping method for unstructured mesh. The rezoning and remapping constitute two of the three phases of Arbitrary Lagrangian–Eulerian (ALE) methods, while the other one is Lagrangian phase. Our method is local (vs. global) in order that the majority of mesh remains unchanged, and that the error caused by remapping can be confined within the changed areas. This is achieved by specifying the local worse areas of mesh based on the mes...

Title of program: Maxis
Catalogue Id: AEIP_v1_0

Nature of problem
Although the great deformation of mesh elements moved with the fluid, which causes the severe shortening of computing time step and the increasing of computing error, makes it indispensable that the rezoning of distorted mesh and the remapping of physical variables such as density or velocity are performed, it still bothers people that the rezoning and remapping also bring in the loss of Lagrangian motion information of old mesh. Therefore the essential problem is how to minimize the error cause ...

Versions of this program held in the CPC repository in Mendeley Data
AEIP_v1_0; Maxis; 10.1016/j.cpc.2010.11.034

This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)

摘要
本论文对非结构化网格的重划区域和重映射方法进行了详尽的描述。重划区域和重映射构成了任意拉格朗日-欧拉（ALE）方法的三阶段中的两个阶段，而第三个阶段则是拉格朗日阶段。本研究的方法采用局部（相对于全局）策略，旨在保持大多数网格保持不变，并将重映射产生的误差限制在变化区域之内。这一目标通过基于网格的局部最劣区域进行指定来实现。

程序名称：Maxis
目录编号：AEIP_v1_0

问题性质
尽管网格元素的极大变形随流体移动，导致计算时间步长严重缩短和计算误差增加，使得对变形网格的重划区域以及对物理变量如密度或速度的重映射变得不可或缺，但重划区域和重映射同时也带来了旧网格拉格朗日运动信息的损失。因此，核心问题在于如何最大限度地减少由重映射引起的误差……

CPC资源库中Mendeley数据所持有的本程序版本
AEIP_v1_0; Maxis; 10.1016/j.cpc.2010.11.034

本程序已从贝尔法斯特女王大学（1969-2018年）所持有的CPC程序库导入。