Results 101 to 110 of about 37,916 (260)

Distributional derivatives and stability of discontinuous Galerkin finite element approximation methods

open access: yesElectronic Journal of Differential Equations, 2016
The goal of this article is to explore and motivate stabilization requirements for various types of discontinuous Galerkin (DG) methods. A new approach for the understanding of DG approximation methods for second order elliptic partial differential ...
Thomas Lewis
doaj  

Development of a Model Order Reduced Arbitrary Lagrangian Eulerian (MORALE) Formulation for Structures Subjected to Dynamic Moving Loads

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 126, Issue 24, 30 December 2025.
ABSTRACT Fast and efficient simulation strategies are a basic requirement of technologies such as digital twins. Particularly for roadway infrastructure, recent developments have demonstrated that the arbitrary Lagrangian Eulerian (ALE) formulation can be utilized to improve computational efficiency, when simulating the response of such pavement ...
Atul Anantheswar   +5 more
wiley   +1 more source

A highly accurate discontinuous Galerkin method for solving nonlinear Bratu's problem

open access: yesAlexandria Engineering Journal
In this manuscript, we present an innovative approach to address nonlinear Bratu's problem by applying the Discontinuous Galerkin method. Our method accurately computes two-branched numerical solutions of the problem.
H. Temimi, M. Ben-Romdhane
doaj   +1 more source

Preconditioning GMRES for discontinuous Galerkin approximations

open access: yesComputer Assisted Methods in Engineering and Science, 2023
The paper presents an implementation and the performance of several preconditioners for the discontinuous Galerkin approximation of diffusion dominated and pure diffusion problems.
Krzysztof Banaś, Mary F. Wheeler
doaj  

Discontinuous Galerkin finite element approximation of non-divergence form elliptic equations with Cordes coefficients [PDF]

open access: yes, 2012
Non-divergence form elliptic equations with discontinuous coefficients do not generally posses a weak formulation, thus presenting an obstacle to their numerical solution by classical finite element methods.
Smears, Iain, Suli, Endre
core  

The Dual Characteristic-Galerkin Method

open access: yesComptes Rendus. Mathématique
The Dual Characteristic-Galerkin method (DCGM) is conservative, precise and experimentally positive. We present the method and prove convergence and $L^2$-stability in the case of Neumann boundary conditions. In a 2D numerical finite element setting (FEM)
Hecht, Frédéric, Pironneau, Olivier
doaj   +1 more source

Error analysis of a continuous-discontinuous Galerkin finite element method for generalized 2D vorticity dynamics [PDF]

open access: yes, 2005
A detailed a priori error estimate is provided for a continuous-discontinuous Galerkin finite element method suitable for two-dimensional geophysical flows.
Bokhove, O.   +2 more
core   +1 more source

Super-convergence of Discontinuous Galerkin Method Applied to the Navier-Stokes Equations [PDF]

open access: yes, 2009
The practical benefits of the hyper-accuracy properties of the discontinuous Galerkin method are examined. In particular, we demonstrate that some flow attributes exhibit super-convergence even in the absence of any post-processing technique. Theoretical
Atkins, Harold L.
core   +1 more source

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