IFISS is a graphical Matlab package for the interactive numerical study of incompressible flow problems. It includes algorithms for discretization by mixed finite element methods and a posteriori error estimation of the computed solutions. The package can also be used as a computational laboratory for experimenting with state-of-the-art preconditioned iterative solvers for the discrete linear equation systems that arise in incompressible flow modelling. A unique feature of the package is its comprehensive nature; for each problem addressed, it enables the study of both discretization and iterative solution algorithms as well as the interaction between the two and the resulting effect on overall efficiency.
- finite elements
- incompressible flow
- iterative solvers
Elman, H., Ramage, A., & Silvester, D. J. (2007). Algorithm 866: IFISS: a Matlab toolbox for modelling incompressible flow. ACM Transactions on Mathematical Software, 33(2). https://doi.org/10.1145/1236463.1236469