Results 121 to 130 of about 8,904 (236)

A Discontinuous Galerkin Method for Two-Dimensional Shock Wave Modeling

open access: yesModelling and Simulation in Engineering, 2011
A numerical scheme based on discontinuous Galerkin method is proposed for the two-dimensional shallow water flows. The scheme is applied to model flows with shock waves. The form of shallow water equations that can eliminate numerical imbalance between
W. Lai, A. A. Khan
doaj   +1 more source

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 class of Petrov-Galerkin finite element methods for the numerical solution of the stationary convection-diffusion equation. [PDF]

open access: yes, 1996
A class of Petrov-Galerkin finite element methods is proposed for the numerical solution of the n dimensional stationary convection-diffusion equation.
Perella, A.J., Perella, Andrew James
core  

Stability of ALE space-time discontinuous Galerkin method [PDF]

open access: yes, 2017
summary:We assume the heat equation in a time dependent domain, where the evolution of the domain is described by a given mapping. The problem is discretized by the discontinuous Galerkin (DG) method in space as well as in time with the aid of Arbitrary ...
Vlasák, Miloslav   +2 more
core   +1 more source

The hp nonconforming mesh refinement in discontinuous Galerkin finite element method based on Zienkiewicz-Zhu error estimation

open access: yesComputer Assisted Methods in Engineering and Science, 2017
This paper deals with hp-type adaptation in the discontinuous Galerkin (DG) method. The DG method is formulated in this paper with a non-zero mesh skeleton width, which leads to a version of the method called in this paper the interface discontinuous ...
Jan Jaśkowiec
doaj   +1 more source

Discontinuous Galerkin methods for hypersonic flows

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

Viscosity in discontinuous Galerkin methods [PDF]

open access: yesPAMM, 2007
AbstractThe Discontinuous Galerkin (DG) discretisation technique proposes a higher order alternative to current state of the art Finite Volume (FV) methods of second order accuracy in space. DG features higher order on unstructured grids without reconstruction, highly local data access patterns and excellent parallelisation properties.
openaire   +1 more source

An Online Generalized Multiscale Discontinuous Galerkin Method (GMsDGM) for Flows in Heterogeneous Media [PDF]

open access: yes, 2017
Offline computation is an essential component in most multiscale model reduction techniques. However, there are multiscale problems in which offline procedure is insufficient to give accurate representations of solutions, due to the fact that offline ...
Efendiev, Yalchin R.   +2 more
core   +1 more source

Discontinuous Galerkin Methods for the Vlasov–Stokes System

open access: yesComputational Methods in Applied Mathematics
Abstract This paper develops and analyses a semi-discrete numerical method for the two-dimensional Vlasov–Stokes system with periodic boundary condition. The method is based on the coupling of the semi-discrete discontinuous Galerkin method for the Vlasov equation with discontinuous Galerkin scheme for the stationary incompressible ...
Harsha Hutridurga   +2 more
openaire   +3 more sources

Discontinuous Galerkin Methods for 3D–1D Systems

open access: yesSIAM Journal on Numerical Analysis
We propose and analyze discontinuous Galerkin (dG) approximations to 3D-1D coupled systems which model diffusion in a 3D domain containing a small inclusion reduced to its 1D centerline. Convergence to weak solutions of a steady state problem is established via deriving a posteriori error estimates and bounds on residuals defined with suitable lift ...
Rami Masri   +2 more
openaire   +2 more sources

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