Results 11 to 20 of about 12,503 (235)

A discontinuous Galerkin moving mesh method for Hamilton-Jacobi equations [PDF]

open access: yes, 2007
In this paper we consider the numerical solution of first-order Hamilton-Jacobi equations using the combination of a discontinuous Galerkin finite element method and an adaptive $r$-refinement (mesh movement) strategy.
MacKenzie, John, Nicola, Aurelian
core   +1 more source

Discontinuous Petrov–Galerkin boundary elements [PDF]

open access: yesNumerische Mathematik, 2016
Generalizing the framework of an ultra-weak formulation for a hypersingular integral equation on closed polygons in [N. Heuer, F. Pinochet, arXiv 1309.1697 (to appear in SIAM J. Numer. Anal.)], we study the case of a hypersingular integral equation on open and closed polyhedral surfaces.
Norbert Heuer, Michael Karkulik
openaire   +4 more sources

Compact and stable discontinuous Galerkin methods for convection-diffusion problems [PDF]

open access: yes, 2012
We present a new scheme, the compact discontinuous Galerkin 2 (CDG2) method, for solving nonlinear convection-diffusion problems together with a detailed comparison to other well-accepted DG methods.
Dedner, A.   +3 more
core   +1 more source

Stability evaluation of high-order splitting method for incompressible flow based on discontinuous velocity and continuous pressure

open access: yesAdvances in Mechanical Engineering, 2019
In this work, we deal with high-order solver for incompressible flow based on velocity correction scheme with discontinuous Galerkin discretized velocity and standard continuous approximated pressure.
Liyang Xu   +5 more
doaj   +1 more source

Exasim: Generating discontinuous Galerkin codes for numerical solutions of partial differential equations on graphics processors

open access: yesSoftwareX, 2022
This paper presents an overview of the functionalities and applications of Exasim, an open-source code for generating high-order discontinuous Galerkin codes to numerically solve parametrized partial differential equations (PDEs).
Jordi Vila-Pérez   +3 more
doaj   +1 more source

Multisymplecticity of Hybridizable Discontinuous Galerkin Methods [PDF]

open access: yesFoundations of Computational Mathematics, 2019
In this paper, we prove necessary and sufficient conditions for a hybridizable discontinuous Galerkin (HDG) method to satisfy a multisymplectic conservation law, when applied to a canonical Hamiltonian system of partial differential equations. We show that these conditions are satisfied by the "hybridized" versions of several of the most commonly-used ...
Robert I. McLachlan, Ari Stern
openaire   +3 more sources

Interior penalty discontinuous galerkin methods for electromagnetic and acoustic wave equations [PDF]

open access: yes, 2006
Introduction: In this thesis we present and analyze the numerical approximation of the second order electromagnetic and acoustic wave equation by the interior penalty (IP) discontinuous Galerkin (DG) finite element method (FEM).
Schneebeli, Anna
core   +1 more source

Numerical approximation of time-fractional Burgers-type equation

open access: yesAdvances in Difference Equations, 2020
In this work, we analyze and test a local discontinuous Galerkin method for solving the Burgers-type equation. The proposed numerical method, which is high-order accurate, is based on a finite difference scheme in time and local discontinuous Galerkin ...
Miaomiao Yang
doaj   +1 more source

Space-time discontinuous Galerkin method for the numerical simulation of the compressible turbulent gas flow through the porous media [PDF]

open access: yesEPJ Web of Conferences, 2019
The article is concerned with the numerical simulation of the compressible turbulent gas flow through the porous media using space-time discontinuous Galerkin method.The mathematical model of flow is represented by the system of non-stationary Reynolds ...
Česenek Jan
doaj   +1 more source

A Discontinuous Galerkin Chimera scheme

open access: yesComputers & Fluids, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Galbraith, Marshall C   +3 more
openaire   +3 more sources

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