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arXiv 1701.08855math.NAcs.NA
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关于高阶保守有限元方法

On high-order conservative finite element methods

University of Campinas(坎皮纳斯大学);Universidad Nacional de Colombia(哥伦比亚国立大学);Worcester Polytechnic Institute(伍斯特理工学院)

Eduardo Abreu, Ciro Diaz, Juan Galvis, Marcus Sarkis

AI总结:

本文提出一种高阶保守有限元方法用于达西流,通过体积残差基方法结合拉格朗日乘子实现质量守恒,具有高阶收敛性且可扩展至三维问题,适用于高异质性问题。

摘要:

本文提出了一种新的高阶保守有限元方法用于达西流。关键在于采用体积残差基,基于拉格朗日乘子来强制质量守恒,不涉及任何依赖于网格的参数。我们获得了一种具有局部保守通量的高阶收敛方法。此外,我们的方法可以方便地扩展到三维。它也适用于需要高阶近似的高度异质性问题。

英文摘要:

A new high-order conservative finite element method for Darcy flow is presented. The key ingredient in the formulation is a volumetric, residual-based, based on Lagrange multipliers in order to impose conservation of mass that does not involve any mesh dependent parameters. We obtain a method with high-order convergence properties with locally conservative fluxes. Furthermore, our approach can be straightforwardly extended to three dimensions. It is also applicable to highly heterogeneous problems where high-order approximation is preferred.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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