A Multigrid Preconditioned Newton--Krylov Method
โ Scribed by Knoll, D. A.; Rider, W. J.
- Book ID
- 118188231
- Publisher
- Society for Industrial and Applied Mathematics
- Year
- 1999
- Tongue
- English
- Weight
- 383 KB
- Volume
- 21
- Category
- Article
- ISSN
- 1064-8275
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๐ SIMILAR VOLUMES
We focus on a fully implicit, nonlinearly converged, solution of multimaterial equilibrium radiation diffusion problems. The nonlinear method of solution is a Newton-Krylov (generalized minimum residual, GMRES) method preconditioned by a multigrid method. The multigrid iteration matrix results from
In this note we continue our investigation [1] of multigrid methods as preconditioners to a Jacobian-free Newton-Krylov method [2,3]. We consider two different options for the formation of the coarse grid operators required in the multigrid preconditioner. The first option (Method 1) involves restri