Multigrid solvers for nonaligned sonic flows

Achi Brandt

doi:10.1137/S1064827598332205

1999-01-01

PRE

Achi Brandt *

Boris Diskin

DOI：10.1137/S1064827598332205

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摘要

En 中文

We investigate an approach to the solution of nonelliptic equations on a rectangular grid. The multigrid algorithms presented here demonstrate the textbook multigrid efficiency even in the case that the equation characteristics do not align with the grid. To serve as a model problem, the two-dimensional (2D) and three-dimensional (3D) linearized sonic flow equations have been chosen. Efficient full-multigrid (FMG) solvers for the problems are demonstrated.

Keyword:

multigrid methods

textbook multigrid efficiency

sonic flow

nonalignment