PIFISS Software Package

Potential (Incompressible) Flow & Iterative Solver Software
Released 7 February 2007

This is an open-source MATLAB with FEMLAB software package. It is associated with the project
Uncertainty quantification in computer simulations of groundwater flow problems with emphasis on contaminant transport.

The PIFISS software can be used to generate typical linear systems arising from deterministic finite element discretizations of two important PDE applications: (variable) diffusion and potential flow. Mesh generation is done using FEMLAB. For potential flow, discretization is with the lowest order Raviart-Thomas mixed approximation method. The package has built-in algebraic multigrid and Krylov subspace solvers and appropriate preconditioning strategies for each problem.

License

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation ; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

Your use or distribution of PIFISS or any derivative code implies that you agree to this License.

Copyright (c) 2007 by D. J. Silvester, C. Powell.

Click here to accept the above license and download the code.

Authors

  
David Silvester                Catherine Powell
School of Mathematics          School of Mathematics
University of Manchester       University of Manchester
Sackville Street               Sackville Street
Manchester M60 1QD             Manchester M60 1QD
United Kingdom                 United Kingdom
d.silvester@manchester.ac.uk   c.powell@manchester.ac.uk

Acknowledgments

This software was developed with support from the UK Engineering and Physical Sciences Research Council and the British Council under the British-German Academic Research Collaboration (ARC) scheme.