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IFISS : a computational laboratory for investigating incompressible flow problems

Elman, Howard and Ramage, Alison and Silvester, D.J. (2012) IFISS : a computational laboratory for investigating incompressible flow problems. Working paper. University of Manchester.

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Abstract

The IFISS Incompressible Flow & Iterative Solver Software 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 flavour 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.