IFISS: A computational laboratory for investigating incompressible flow problems

Howard C. Elman, Alison Ramage, David J. Silvester

    Research output: Contribution to journalArticlepeer-review


    The Incompressible Flow & Iterative Solver Software (ifiss) package contains software which can be run with MATLAB or Octave to create a computational laboratory 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, together with state-of-the-art preconditioned iterative solvers for the resulting discrete linear equation systems. In this paper we give a flavor of the code's main features and illustrate its applicability using several case studies. We aim to show that ifiss can be a valuable tool in both teaching and research. © 2014 Society for Industrial and Applied Mathematics.
    Original languageEnglish
    Pages (from-to)261-273
    Number of pages12
    JournalSIAM REVIEW
    Issue number2
    Publication statusPublished - 2014


    • Finite elements
    • Incompressible flow
    • Iterative solvers
    • Mathematical software


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