A local rezoning and remapping method for unstructured mesh

Published: 1 June 2011| Version 1 | DOI: 10.17632/vpf4ddvt2v.1
Zhiwei Lin, Shaoen Jiang, Shunchao Wu, Longyu Kuang


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)



Computational Physics, Fluid Dynamics, Plasma Physics, Gas