Results 111 to 120 of about 36,161 (211)

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

Stochastic Discontinuous Galerkin Methods (SDGM) based on fluctuation-dissipation balance

open access: yesResults in Applied Mathematics, 2019
We introduce a general framework for approximating parabolic Stochastic Partial Differential Equations (SPDEs) based on fluctuation-dissipation balance. Using this approach we formulate Stochastic Discontinuous Galerkin Methods (SDGM).
W. Pazner, N. Trask, P.J. Atzberger
doaj   +1 more source

Quasi-Monte Carlo and Discontinuous Galerkin

open access: yesETNA - Electronic Transactions on Numerical Analysis
In this study, we consider the development of tailored quasi-Monte Carlo (QMC) cubatures for non-conforming discontinuous Galerkin (DG) approximations of elliptic partial differential equations (PDEs) with random coefficients. We consider both the affine and uniform and the lognormal models for the input random field, and investigate the use of QMC ...
Kaarnioja, Vesa, Rupp, Andreas
openaire   +2 more sources

The Time Discontinuous H1-Galerkin Mixed Finite Element Method for Linear Sobolev Equations

open access: yesDiscrete Dynamics in Nature and Society, 2015
We combine the H1-Galerkin mixed finite element method with the time discontinuous Galerkin method to approximate linear Sobolev equations. The advantages of these two methods are fully utilized.
Hong Yu, Tongjun Sun, Na Li
doaj   +1 more source

A Framework for Curved Boundary Representation in 2D Discontinuous Galerkin Euler Solvers

open access: yesJournal of Applied Fluid Mechanics, 2014
Finite-element based CFD solvers like the family of Discontinuous Galerkin (DG) solvers suffer severely from inaccurate boundary reconstruction. In this matter, developing an accurate and flexible strategy is highly demanded to provide high-order curved ...
Behzad Baghapour   +2 more
doaj  

Discontinuous Galerkin Immersed Finite Volume Element Method for Anisotropic Flow Models in Porous Medium

open access: yesAbstract and Applied Analysis, 2014
By choosing the trial function space to the immersed finite element space and the test function space to be piecewise constant function space, we develop a discontinuous Galerkin immersed finite volume element method to solve numerically a kind of ...
Zhong-yan Liu, Huan-zhen Chen
doaj   +1 more source

DGFS-BE Solver: An open-source Discontinuous Galerkin Fast Spectral Solver for the full Boltzmann equation

open access: yesSoftwareX
This paper introduces the DGFS-BE solver, an open-source Discontinuous Galerkin Fast Spectral solver designed to address the complexities of the Boltzmann equation, a fundamental equation in kinetic theory.
Evgeniia Vorozhbit   +4 more
doaj   +1 more source

Discontinuous Galerkin methods for hypersonic flows

open access: yesProgress in Aerospace Sciences
Comment: 34 pages, 25 figures, and 1 ...
Dominique S. Hoskin   +5 more
openaire   +2 more sources

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