An efficient multigrid scheme for elliptic equations with discontinuous coefficients Journal Article uri icon

Overview

abstract

  • AbstractAn 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.

publication date

  • September 1, 1992

has restriction

  • closed

Date in CU Experts

  • September 17, 2013 7:59 AM

Full Author List

  • Liu C; Liu Z; McCormick S

author count

  • 3

Other Profiles

International Standard Serial Number (ISSN)

  • 0748-8025

Electronic International Standard Serial Number (EISSN)

  • 1555-2047

Additional Document Info

start page

  • 621

end page

  • 631

volume

  • 8

issue

  • 9