Arbitrary Lagrangian-Eulerian methods for modeling high-speed compressible multimaterial flows

JOURNAL OF COMPUTATIONAL PHYSICS

卷:322

Article

Barlow, Andrew J.¹  Maire, Pierre-Henri²  Rider, William J.³  Rieben, Robert N.⁴  Shashkov, Mikhail J.⁵ 

[1] AWE, Aldermaston, England

[2] CEA, CESTA, Le Barp, France

[3] Sandia Natl Labs, Albuquerque, NM USA

[4] Lawrence Livermore Natl Lab, Livermore, CA USA

[5] Los Alamos Natl Lab, Los Alamos, NM USA

关键词: Lagrangian hydrodynamics;    Arbitrary-Lagrangian-Eulerian hydrodynamics;    Rezone;    Remap;    Multimaterial cells;    Interface-aware sub-scale closure models;    Staggered discretization;    Cell-centered discretization;    High-order methods;   

DOI  :  10.1016/j.jcp.2016.07.001

来源: Elsevier

【 摘 要 】

This paper reviews recent developments in Arbitrary Lagrangian Eulerian (ALE) methods for modeling high speed compressible multimaterial flows in complex geometry on general polygonal meshes. We only consider the indirect ALE approach which consists of three key stages: a Lagrangian stage, in which the solution and the computational mesh are updated; a rezoning stage, in which the nodes of the computational mesh are moved to improve grid quality; and a remapping stage, in which the Lagrangian solution is transferred to the rezoned mesh. (C) 2016 Elsevier Inc. All rights reserved.

【 授权许可】

Free