A COMPARISON BETWEEN DIRECT AND ITERATIVE METHODS TO SOLVE THE LINEAR SYSTEMS ARISING FROM A TIME-DEPENDENT 2D GROUNDWATER FLOW MODEL
- 1 January 1993
- journal article
- research article
- Published by Taylor & Francis in International Journal of Computational Fluid Dynamics
- Vol. 1 (2) , 95-113
- https://doi.org/10.1080/10618569308904467
Abstract
In this paper various methods are compared for solving nonsymmetric linear systems. Both direct and 1LU preconditioned iterative solvers are considered. The linear systems arise when the implicit BDF time-stepping method in combination with modified Newton is applied to a system of nonlinear time-dependent two-dimensional PDEs. The PDE system under study is a groundwater flow model simulating transport of brine. 1991 Mathematics Subject Classification: Primary: 65N22. Secondary: 65F05, 65F10, 65M20. 1991 CR Categories: G1.3, Gl.8.Keywords
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