Exploració per tema "Galerkin, Mètodes de"
Ara es mostren els items 14-33 de 35
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Goal oriented error estimation for the element free Galerkin method
(2007-06)
Article
Accés obertA novel approach for implicit residual-type error estimation in meshfree methods is presented. This allows to compute upper and lower bounds of the error in energy norm with the ultimate goal of obtaining bounds for outputs ... -
Goal-oriented error estimation for transient parabolic problems
(2007-04)
Article
Accés obertThis work focuses on controlling the error and adapting the discretization in the context of parabolic problems. In order to obtain a sound mathematical framework, the time domain is discretized using a Discontinuous ... -
High-order discontinuous Galerkin methods for incompressible flows
(Universitat Politècnica de Catalunya, 2009-09-22)
Tesi
Accés obertAquesta tesi doctoral proposa formulacions de Galerkin discontinu (DG) d'alt ordre per fluxos viscosos incompressibles. <br/>Es desenvolupa un nou mètode de DG amb penalti interior (IPM-DG), que condueix a una forma feble ... -
High-order hybridizable discontinuous Galerkin formulation for one-phase flow through porous media
(2021-03-06)
Article
Accés obertWe present a stable high-order hybridizable discontinuous Galerkin (HDG) formulation coupled with high-order diagonal implicit Runge–Kuta (DIRK) schemes to simulate slightly compressible one-phase flow through porous media. ... -
High-order hybridizable discontinuous Galerkin formulation with fully implicit temporal schemes for the simulation of two-phase flow through porous media
(John Wiley & Sons, 2021-07-30)
Article
Accés obertWe present a memory-efficient high-order hybridizable discontinuous Galerkin (HDG) formulation coupled with high-order fully implicit Runge-Kutta schemes for immiscible and incompressible two-phase flow through porous ... -
Hybridizable discontinuous Galerkin p-adaptivity for wave propagation problems
(2013)
Article
Accés obertA p-adaptive hybridizable discontinuous Galerkin method for the solution of wave problems is presented in a challenging engineering problem. Moreover, its performance is compared with a high-order continuous Galerkin. The ... -
Improved accuracy in the scattering analysis of infinitely long ferromagnetic objects
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Text en actes de congrés
Accés restringit per política de l'editorialThe scattering of transversal magnetic (TM) electromagnetic waves impinging on infinitely long homogeneous ferromagnetic objects is usually analyzed with the Poggio-Miller-Chan-Harrington-Wu-Tsai (PMCHWT) integral equation. ... -
Locking in the incompressible limit for the element-free Galerkin method
(Wiley and Sons, 2001-04)
Article
Accés obertVolumetric locking (locking in the incompressible limit) for linear elastic isotropic materials is studied in the context of the element-free Galerkin method. The modal analysis developed here shows that the number of ... -
Locking in the incompressible limit: pseudo-divergence-free element free Galerkin
(2003-09)
Article
Accés obertLocking in finite elements has been a major concern since its early developments. It appears because poor numerical interpolation leads to an over-constrained system. This paper proposes a new formulation that asymptotically ... -
Locking in the incompressible limit: pseudo-divergence-free element free Galerkin
(2002-11)
Article
Accés obertLocking in finite elements has been a major concern since its early developments and has been extensively studied. However, locking in mesh-free methods is still an open topic. Until now the remedies proposed in the ... -
Meshfree methods
(John Wiley & Sons, 2004-10)
Capítol de llibre
Accés restringit per política de l'editorialThe aim of this chapter is to provide an in-depth presentation and survey of meshfree particle methods. Several particle approximations are reviewed; the SPH method, corrected gradient methods and the moving least squares ... -
El método de los segmentos
(Universitat Politècnica de Catalunya, 2008)
Article
Accés obertSe reporta el uso de segmentos como dominio de integración para los métodos libres de mallas de tipo Petrov-Galerkin Local (MLPG). El procedimiento acarrea ventajas en el tratamiento de dominios con forma geométrica ... -
Monotonicity preserving shock capturing techniques for finite elements
(Universitat Politècnica de Catalunya, 2016-11-28)
Tesi
Accés obertThe main object of study of this thesis is the development of artificial diffusion shock capturing techniques for continuous and discontinuous Galerkin (cG and dG) approximations of the convection-diffusion problem. Special ... -
Un nuevo enfoque para el tratamiento de los términos difusivos en la ecuación de convección-difusión en el método de Galerkin discontinuo
(Universitat Politècnica de Catalunya, 2007)
Article
Accés obertLos modelos utilizados en la práctica para problemas de convección-difusión están habitualmente basados en la ley de Fick. En ciertas aplicaciones el uso de la ley de Fick lineal puede ser adecuado, a pesar de predecir ... -
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 ... -
Pseudo-divergence-free element free Galerkin method for incompressible fluid flow
(2004-03)
Article
Accés obertIncompressible modeling in finite elements has been a major concern since its early developments and has been extensively studied. However, incompressibility in mesh-free methods is still an open topic. Thus, instabilities ... -
Shock capturing for discontinuous galerkin methods
(Universitat Politècnica de Catalunya, 2011-10-14)
Tesi
Accés obertAquesta tesi doctoral proposa formulacions de Galerkin Discontinu (DG) d’alt ordre per la captura de shocks, obtenint alhora solucions altament precises per problemes de flux compressible. En les últimes dècades, la ... -
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. ... -
Stabilized finite element methods for convection-diffusion-reaction, Helmholtz and Stokes problems
(Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2012)
Llibre
Accés obertWe present three new stabilized finite element (FE) based Petrov–Galerkin methods for the convection–diffusion–reaction (CDR), the Helmholtz and the Stokes problems, respectively. -
Towards a low dissipation FE scheme for scale resolving turbulent compressible flows
(Barcelona Supercomputing Center, 2019-05-07)
Text en actes de congrés
Accés obert