Results 111 to 120 of about 12,503 (235)

Comparison of high-order methods on unstructured grids [PDF]

open access: yes, 2013
A high-order Discontinuous Galerkin (DG) method is formulated and implemented on the Cranfield University’s 3D unstructured Finite Volume Method (FVM) code (UCNS3D), for both linear and non-linear hyperbolic conservation laws and for test-cases which ...
Iqbal, Kashif H.
core  

An implicit-explicit Runge-Kutta discontinuous Galerkin method for advection-diffusion equations

open access: yes四川大学学报. 自然科学版
In this paper, an implicit-explicit Runge-Kutta discontinuous Galerkin method is proposed for the advection-diffusion equation.In the method, a two-stage Runge-Kutta scheme is employed for the temporal discretization, a discontinuous Galerkin method is ...
QING Shuwen, WANG Lu, FENG Minfu
doaj  

ADER discontinuous Galerkin schemes for aeroacoustics

open access: yesComptes Rendus. Mécanique, 2005
In this paper we apply the ADER approach to the Discontinuous Galerkin (DG) framework for the two-dimensional linearized Euler equations. The result is an efficient high order accurate single-step scheme in time which uses less storage than Runge–Kutta DG schemes, especially for very high order of accuracy.
Dumbser, Michael, C. D. Munz
openaire   +2 more sources

Error estimation and adjoint-based adaptation in aerodynamics [PDF]

open access: yes, 2006
In this article we give an overview of recent developments in error estimation and in residual-based and goal-oriented (adjoint-based) adaptation for Discontinuous Galerkin discretizations of sub- and supersonic viscous compressible flows.
Hartmann, R. (author), Hartmann, Ralf
core  

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

Extended hybridizable discontinuous Galerkin method

open access: yes, 2023
This thesis proposes a new numerical technique: the eXtended Hybridizable Discontinuous Galerkin (X-HDG) Method, to efficiently solve problems including moving boundaries and interfaces. It aims to outperform available methods and improve the results by inheriting favored properties of Discontinuous Galerkin (HDG) together with an explicit interface ...
openaire   +4 more sources

Implementation of LDG method for 3D unstructured meshes

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2012
This paper describes an implementation of the Local Discontinuous Galerkin method (LDG) applied to elliptic problems in 3D. The implementation of the major operators is discussed.
Filander A. Sequeira Chavarría   +1 more
doaj   +1 more source

The discontinuous Galerkin method for the numerical simulation of compressible viscous flow

open access: yesEPJ Web of Conferences, 2014
In this paper we deal with numerical simulation of the compressible viscous flow. The mathematical model of flow is represented by the system of non-stationary compressible Navier-Stokes equations.
Česenek Jan
doaj   +1 more source

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