Schur-complement multigirid: A robust method for groundwater flow and transport problems

C. Wagner*, W. Kinzelbach, Gabriel Wittum

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

A Schur-complement multigrid method for the solution of convection-diffusion problems with strongly discontinuous coefficients is the focus of this paper. This algorithm turns out to be robust and efficient for our test problems. Its convergence rate is in all cases superior to the standard multigrid method. The Schur-complemerit multigrid method is applied to the problem of the decontamination of a heterogeneous porous medium by flushing. We determine the typical decontamination time for several configurations and its functional dependence on the statistical properties of the hydraulic conductivity distribution of the medium.

Original languageEnglish (US)
Pages (from-to)523-545
Number of pages23
JournalNumerische Mathematik
Volume75
Issue number4
DOIs
StatePublished - Jan 1 1997

ASJC Scopus subject areas

  • Computational Mathematics
  • Applied Mathematics

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