ISSN:
0748-8025
Keywords:
Engineering
;
Engineering General
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Mathematics
,
Technology
Notes:
An efficient multigrid scheme for elliptic equations with jump discontinuous coefficients is presented. It is based on a cell-centred grid and finite-volume method, with the diffusion coefficients at the jump interface being determined by a flux conservation condition. The diffusion coefficients on coarse grids are calculated by a simple restriction of the coefficients from the fine grid. An efficient interpolation operator, which is constructed by the so-called effective area law, is developed. Computational results for a two-dimensional scalar elliptic equation and for two-phase porous media flow show that the new scheme achieves multigrid efficiency typical of the constant-coefficient case.
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cnm.1630080909
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