Exploració per tema "Discontinuous Galerkin"
Ara es mostren els items 1-15 de 15
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3D NURBS-enhanced finite element method (NEFEM)
(Wiley and Sons, 2011-10-14)
Article
Accés restringit per política de l'editorialThis paper presents the extension of the recently proposed NURBS-enhanced finite element method (NEFEM) to 3D domains. NEFEM is able to exactly represent the geometry of the computational domain by means of its CAD boundary ... -
A Review of Element-Based Galerkin Methods for Numerical Weather Prediction: Finite Elements, Spectral Elements, and Discontinuous Galerkin
(Springer, 2015-05-19)
Article
Accés obertNumerical weather prediction (NWP) is in a period of transition. As resolutions increase, global models are moving towards fully nonhydrostatic dynamical cores, with the local and global models using the same governing ... -
A simple shock-capturing technique for high-order discontinuous Galerkin methods
(2012-08)
Article
Accés obertThis article presents a novel shock-capturing technique for the discontinuous Galerkin (DG) method. The technique is designed for compressible flow problems, which are usually characterized by the presence of strong shocks ... -
Analysis of the discontinuous Galerkin interior penalty method with solenoidal approximations for the stokes equations
(2014)
Article
Accés obertThe discontinuous Galerkin Interior Penalty Method with solenoidal approximations proposed in [13] for the incompressible Stokes equations is analyzed. Continuity and coercivity of the bilinear form are proved. A priori ... -
Differentiable monotonicity-preserving schemes for discontinuous Galerkin methods on arbitrary meshes
(2017-06)
Article
Accés obertThis work is devoted to the design of interior penalty discontinuous Galerkin (dG) schemes that preserve maximum principles at the discrete level for the steady transport and convection–diffusion problems and the respective ... -
Dimensionless analysis of HSDM and application to simulation of breakthrough curves of highly adsorbent porous media
(2013-05)
Article
Accés obertThe homogeneous surface diffusion model (HSDM) is widely used for adsorption modeling of aqueous solutions. The Biot number is usually used to characterize model behavior. However, some limitations of this characterization ... -
Galerkin discontinuo local aplicado a problemas de ondas acústicas: condiciones de frontera absorbente locales de bajo orden
(2009-06-02T10:26:49Z)
Text en actes de congrés
Accés obertEn este trabajo se presenta una comparación de la solución numérica de la ecuación de Helmholtz utilizando el método de elementos finitos Galerkin Discontinuo Local (LDG) con varias condiciones de contorno absorbentes ... -
High-order continuous and discontinuous Galerkin methods for wave problems
(2013-12-10)
Article
Accés restringit per política de l'editorialhree Galerkin methods—continuous Galerkin, Compact Discontinuous Galerkin, and hybridizable discontinuous Galerkin—are compared in terms of performance and computational efficiency in 2-D scattering problems for low and ... -
High-order implicit time integration for unsteady incompressible flows
(2011-11-30)
Article
Accés obertThe spatial discretization of unsteady incompressible Navier–Stokes equations is stated as a system of differential algebraic equations, corresponding to the conservation of momentum equation plus the constraint due to ... -
Hybridizable Discontinuous Galerkin with degree adaptivity for the incompressible Navier-Stokes equations
(Elsevier, 2014-07-02)
Article
Accés obertA degree adaptive Hybridizable Discontinuous Galerkin (HDG) method for the solution of the incompressible Navier-Stokes equations is presented. The key ingredient is an accurate and computationally inexpensive a posteriori ... -
Numerical simulation of stationary diffusion problems using high-order hybridizable continuous and discontinuous Galerkin methods
(Universitat Politècnica de Catalunya, 2016-06)
Projecte Final de Màster Oficial
Accés obert -
NURBS-Enhanced finite element hybridizable discontinuous Galerkin method with degree adaptivity for steady Stokes flow
(Universitat Politècnica de Catalunya, 2017-06-13)
Projecte Final de Màster Oficial
Accés obert
Realitzat a/amb: LaCàN / Centre Internacional de Mètodes Numèrics a l'Enginyeria / Swansea UniversityThe aim of this project is to develop a high-order accurate space discretisation method for the solution of Stokes problems. The approach will consider a p-adaptive HDG method and NURBS-enhanced finite element method to ... -
On discrete maximum principles for discontinuous Galerkin methods
(2015-04)
Article
Accés obertThe aim of this work is to propose a monotonicity-preserving method for discontinuous Galerkin (dG) approximations of convection–diffusion problems. To do so, a novel definition of discrete maximum principle (DMP) is ... -
Shock capturing techniques for hp-adaptive finite elements
(2016-09)
Article
Accés obertThe aim of this work is to propose an hp-adaptive algorithm for discontinuous Galerkin methods that is capable to detect the discontinuities and sharp layers and avoid the spurious oscillation of the solution around them. ... -
Shock-capturing with discontinuous garlekin methods
(2009-06-08T08:32:41Z)
Text en actes de congrés
Accés obertA shock capturing strategy for high order Discontinuous Galerkin methods for conservation laws is proposed. We present a method in the one-dimensional case based on the introduction of artificial viscosity into the ...