2012/4 - Natural Sciences and Technology

Permanent URI for this collection

ACC Journal, ročník XVIII 2012/4

Prof. RNDr. Jaromír Antoch, CSs. – Univerzita Karlova v Praze
doc. RNDr. Karel Najzar. CSc. - Univerzita Karlova v Praze


Recent Submissions

Now showing 1 - 5 of 18
  • Item
    Adaptive inexact newton methods with a posteriori stopping criteria
    (Technická univerzita v Liberci, Česká republika, 2012) Ern, Alexandre; Vohralík., Martin
    spline-wavelet basis and a method for an inexact multiplication of wavelet stiffness matrix with
  • Item
    Application of reconstruction operators in the discontinuous galerkin method
    (Technická univerzita v Liberci, Česká republika, 2012) Kučera, Václav
    This paper gives an overview of the main ingredients needed to incorporate reconstruction op- erators, as known from higher order finite volume (FV) and spectral volume (SV) schemes, into the discontinuous Galerkin (DG) method. Such an operator constructs higher order approxima- tions from the lower order DG scheme, increasing the order of convergence, while leading to a more efficient numerical scheme than the corresponding higher order DG scheme itself. We discuss theoretical, as well as implementational aspects and numerical experiments.
  • Item
    Numerical evaluation of rheological experiment
    (Technická univerzita v Liberci, Česká republika, 2012) Salač, Petr; Matoušek, Ivo
    A viscoelastic simply supported rotationally symmetric body, fixed on a base, is considered. The body is loaded by a flat plunger, which moves in the direction of the z axis by a constant velocity v. In this work the reaction force is computed. This allows us to compare numerical results with data from rheological experiment (see [6], [7]). The variational formulation of the problem is derived and transformed to cylindrical coordinates. Some results of numerical calculations are presented.
  • Item
    Multiwavelets based on hermite cubic splines
    (Technická univerzita v Liberci, Česká republika, 2012) Černá, Dana; Finěk, Václav; Plačková, Gerta
    the convection-diffusion equation. We use an implicit scheme for the time discretization and
  • Item
    HP-discontinuous galerkin method for nonlinear problems
    (Technická univerzita v Liberci, Česká republika, 2012) Dolejší, Vít
    an adaptive wavelet-based method for a spatial discretization. We use a well-conditioned cubic