Search for dissertations about: "posteriori error estimates"

Showing result 1 - 5 of 33 swedish dissertations containing the words posteriori error estimates.

  1. 1. On adaptive finite element methods based on a posteriori estimates

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Axel Målqvist; Göteborgs universitet.; Gothenburg University.; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; finite element method; Galerkin; duality; a posteriori error estimation; adaptivity; Poisson equation; boundary penalty method; Helmholtz equation; pollution; variational multiscale method; adaptivity; pollution; boundary penalty method; Galerkin; duality; a posteriori error estimation; Helmholtz equation; variational multiscale method; Poisson equation;

    Abstract : .... READ MORE

  2. 2. Goal oriented a posteriori error estimates and adaptive algorithms for coupled problems

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Robert Söderlund; [2007]
    Keywords : ;

    Abstract : .... READ MORE

  3. 3. Model Adaptivity in Elasticity

    University dissertation from Göteborg : Chalmers University of Technology

    Author : David Heintz; Göteborgs universitet.; Gothenburg University.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; finite element method; dimension reduction; a posteriori error; model error; model adaptivity; model error; a posteriori error; dimension reduction; model adaptivity;

    Abstract : We consider model adaptivity in elasticity for dimensionally reduced forms, and shall treat different conceptual approaches. The basic idea, however, is to adaptively refine, not only the computational mesh, but also the underlying mathematical formulation. READ MORE

  4. 4. Adaptive Finite Element Methods for Compressible Two-Phase Flow

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Erik Burman; Göteborgs universitet.; Gothenburg University.; [1998]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; adaptive finite element methods; two-phase flow; compressible flow; conservation laws; hyperbolic systems; a posteriori error estimates; streamline diffusion; stability analysis; quantitative error control; adaptive algorithms; quantitative error control; conservation laws; adaptive algorithms; compressible flow; stability analysis; hyperbolic systems; two-phase flow; streamline diffusion; a posteriori error estimates;

    Abstract : In this thesis we develop, apply and analyse adaptive finite element methods with error control for compressible flow problems, focusing in particular on two-phase flow. The adaptive algorithms, aiming at quantitative error control with efficient use of computational resources, are based on a posteriori error estimates, where the error is estimated in terms of the computed solution, the local mesh-size and certain stability factors. READ MORE

  5. 5. On A Posteriori Error Estimation in the Maximum Norm

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Mats Boman; Göteborgs universitet.; Gothenburg University.; [2000]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In this thesis we consider residual-based a posteriori error estimates in the maximum norm for the finite element solution of some partial differential equations. The thesis consists of three papers. The first paper concerns a pointwise a posteriori error estimate for the time dependent obstacle problem. READ MORE