.png){kind=icon}
返回
A subzone reconstruction algorithm for efficient staggered compatible remapping
.png){kind=icon}
OA
AI
DOI：10.1016/j.jcp.2015.04.046.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Staggered-grid Lagrangian hydrodynamics algorithms frequently make use of subzonal discretization of state variables for the purposes of improved numerical accuracy, generality to unstructured meshes, and exact conservation of mass, momentum, and energy. For Arbitrary Lagrangian-Eulerian (ALE) methods using a geometric overlay, it is difficult to remap subzonal variables in an accurate and efficient manner due to the number of subzone-subzone intersections that must be computed. This becomes prohibitive in the case of 3D, unstructured, polyhedral meshes. A new procedure is outlined in this paper to avoid direct subzonal remapping. The new algorithm reconstructs the spatial profile of a subzonal variable using remapped zonal and nodal representations of the data. The reconstruction procedure is cast as an under-constrained optimization problem. Enforcing conservation at each zone and node on the remapped mesh provides the set of equality constraints; the objective function corresponds to a quadratic variation per subzone between the values to be reconstructed and a set of target reference values. Numerical results for various pure-remapping and hydrodynamics tests are provided. Ideas for extending the algorithm to staggered-grid radiation-hydrodynamics are discussed as well as ideas for generalizing the algorithm to include inequality constraints. (C) 2015 Elsevier Inc. All rights reserved.
Keyword:
Remapping
ALE methods
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3.8
论文数:
1.6W
被引数:
7.4W
机构
引用论文
Inadvertent Perioperative Hypothermia Risks and Postoperative Complications: A Retrospective Study.png)
AORN Journal
AORN JournalIF0
PREAI
分享收藏A subcell remapping method on staggered polygonal grids for arbitrary-Lagrangian-Eulerian methods
PREAI
分享收藏Conservative remapping and region overlays by intersecting arbitrary polyhedra通过相交任意多面体进行保守重映射和区域覆盖
PREAI
分享收藏
查看更多内容