Geometrical interpretation of the multi‐point flux approximation L‐method
Geometrical interpretation of the multi‐point flux approximation L‐method
复制标题
多点通量近似 Lâ 方法的几何解释
DOI:
10.1002/fld.1926
复制
发表时间:
2009
影响因子:
1.8
通讯作者:
B. I. Wohlmuth
中科院分区:
文献类型:
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作者:
R. Helmig;B. I. Wohlmuth
In this paper, we first investigate the influence of different Dirichlet boundary discretizations on the convergence rate of the multi‐point flux approximation (MPFA) L‐method by the numerical comparisons between the MPFA O‐ and L‐method, and show how important it is for this new method to handle Dirichlet boundary conditions in a suitable way. A new Dirichlet boundary strategy is proposed, which in some sense can well recover the superconvergence rate of the normal velocity. In the second part of the work, the MPFA L‐method with homogeneous media is studied. A systematic concept and geometrical interpretations of the L‐method are given and illustrated, which yield more insight into the L‐method. Finally, we apply the MPFA L‐method for two‐phase flow in porous media on different quadrilateral grids and compare its numerical results for the pressure and saturation with the results of the two‐point flux approximation method. Copyright © 2008 John Wiley & Sons, Ltd.
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
I. Aavatsmark;G. T. Eigestad;R. A. Klausen
通讯作者:
R. A. Klausen
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
P. Bastian;Markus Blatt;A. Dedner;C. Engwer;R. Klöfkorn;R. Kornhuber;Mario Ohlberger;O. Sander
通讯作者:
O. Sander