Volume 6, pp. 106-119, 1997.
Multigrid algorithm with conditional coarsening for the non-aligned sonic flow
Boris Diskin
Abstract
A multigrid approach using conditional coarsening in constructing solvers
for non-elliptic equations on a rectangular grid is presented.
Such an approach permits the achievement of a full
multigrid efficiency even in the case where the equation characteristics
do not align with the grid. The 2D sonic-flow equation linearized over
a constant velocity field has been chosen as the model problem.
An efficient
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Key words
multigrid methods, conditional coarsening, sonic flow, non-alignment.
AMS subject classifications
65N55, 76H05, 76M20.
ETNA articles which cite this article
| Vol. 6 (1997), pp. 1-34 Achi Brandt: The Gauss Center research in multiscale scientific computation |