Conservative interpolation between volume meshes by local Galerkin projection
Conservative interpolation between volume meshes by local Galerkin projection
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DOI：
10.1016/j.cma.2010.07.015
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发表时间：
2011-01-01
影响因子：
7.2
通讯作者：
Maddison, J. R.
中科院分区：
文献类型：
--
作者：
Farrell, P. E.;Maddison, J. R.
在计算物理中，离散场之间的插值问题经常出现。明显的方法，一致的插值，有几个缺点，如次优，不守恒，不适合用于不连续离散。一种替代方案，伽辽金投影，弥补了这些缺陷，但是，它的实施已被证明是非常具有挑战性的。本文提出了一种局部实现网格间离散场伽辽金投影的算法。该算法自然地扩展到三维，并且非常有效。(C)2010爱思唯尔有限公司版权所有。
The problem of interpolating between discrete fields arises frequently in computational physics. The obvious approach, consistent interpolation, has several drawbacks such as suboptimality, non-conservation, and unsuitability for use with discontinuous discretisations. An alternative, Galerkin projection, remedies these deficiencies; however, its implementation has proven very challenging. This paper presents an algorithm for the local implementation of Galerkin projection of discrete fields between meshes. This algorithm extends naturally to three dimensions and is very efficient. (C) 2010 Elsevier B.V. All rights reserved.