A delayed remap technique in multi-material ALE methods

被引：1
|
作者：
Alia, Ahlem [1 ]
Aquelet, Nicolas [2 ]
Souli, Mhamed [1 ]
Olovsson, Lars [2 ]
机构：
[1] CNRS, UMR 8107, Lab Mecan Lille, Blvd Paul Langevin Cite Sci, F-59655 Villeneuve Dascq, France
[2] Livermore Software Technol Corp, Livermore, CA 94550 USA
来源：
EUROPEAN JOURNAL OF COMPUTATIONAL MECHANICS | 2006年 / 15卷 / 05期
关键词：
mutli-material ALE formulation; delayed mesh relaxation; shock capture; adapted mesh refinement;
D O I：
10.3166/remn.15.465-480
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A new mesh refinement method for multi-material ALE formulations is presented. The computational timestep of this approach is divided in 2 steps: a so-called Lagrangian step, during which the mesh deforms with the update of the solution, and a so-called Eulerian step, during which the mesh is remapped in order to preserve the mesh regularity and refine in the vicinity of the shock front. As test case the method is applied to the propagation of an explosive airblast, for which experimental results are available.
引用
收藏
页码：465 / 480
页数：16
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