Results 21 to 30 of about 1,001 (186)

Numerical analysis of the neutron multigroup $SP_N$ equations

open access: yesComptes Rendus. Mathématique, 2021
The multigroup neutron $SP_N$ equations, which are an approximation of the neutron transport equation, are used to model nuclear reactor cores. In their steady state, these equations can be written as a source problem or an eigenvalue problem.
Jamelot, Erell, Madiot, François
doaj   +1 more source

A Discontinuous Galerkin like Coarse Space correction for Domain Decomposition Methods with continuous local spaces: the DCS-DGLC Algorithm

open access: yesESAIM: Proceedings and Surveys, 2014
In this paper, we are interested in scalable Domain Decomposition Methods (DDM). To this end, we introduce and study a new Coarse Space Correction algorithm for Optimized Schwarz Methods(OSM): the DCS-DGLC algorithm.
Santugini Kévin
doaj   +1 more source

DEIP, discontinuous element insertion Program — Mesh generation for interfacial finite element modeling

open access: yesSoftwareX, 2018
The Discontinuous Element Insertion Program is a MATLAB/Octave toolbox for inserting zero-thickness interface elements into two and three dimensional finite element meshes.
Timothy J. Truster
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

An Unfitted Discontinuous Galerkin Method for Elliptic Interface Problems

open access: yesJournal of Applied Mathematics, 2014
An unfitted discontinuous Galerkin method is proposed for the elliptic interface problems. Based on a variant of the local discontinuous Galerkin method, we obtain the optimal convergence for the exact solution u in the energy norm and its flux p in the ...
Qiuliang Wang, Jinru Chen
doaj   +1 more source

Palindromic Discontinuous Galerkin Method [PDF]

open access: yes, 2017
We present a high-order scheme for approximating kinetic equations with stiff relaxation. The construction is based on a high-order, implicit, upwind Discontinuous Galerkin formulation of the transport equations. In practice, because of the triangular structure of the implicit system, the computations are explicit. High order in time is achieved thanks
Coulette, David   +4 more
openaire   +2 more sources

Discontinuous Galerkin approach for two-parametric convection-diffusion equation with discontinuous source term [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization
In this article, we explore the discontinuous Galerkin finite element method for two-parametric singularly perturbed convection-diffusion problems with a discontinuous source term.
K. R. Ranjan, S. Gowrisankar
doaj   +1 more source

A high order hybridizable discontinuous Galerkin method for incompressible miscible displacement in heterogeneous media

open access: yesResults in Applied Mathematics, 2020
An hybridizable discontinuous Galerkin method of arbitrary high order is formulated to solve the miscible displacement problem in porous media. The spatial discretization is combined with a sequential algorithm that decouples the flow and the transport ...
Maurice S. Fabien   +2 more
doaj   +1 more source

Resolving phase transitions with discontinuous Galerkin methods

open access: yesSciPost Physics Core, 2023
We demonstrate the applicability and advantages of Discontinuous Galerkin (DG) schemes in the context of the Functional Renormalization Group (fRG). We investigate the $O(N)$-model in the large $N$ limit.
Eduardo Grossi, Nicolas Wink
doaj   +1 more source

Quail: A lightweight open-source discontinuous Galerkin code in Python for teaching and prototyping

open access: yesSoftwareX, 2022
In this paper, we present Quail, a lightweight discontinuous Galerkin solver written in Python. The aim of this code is to serve not only as a teaching tool for newcomers to the rapidly growing field, but also as a prototyping platform for testing ...
Eric J. Ching   +3 more
doaj   +1 more source

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