Exploració per tema "Galerkin methods"
Ara es mostren els items 24-38 de 38
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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 ... -
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 ... -
On the design of discontinuous Galerkin methods for elliptic problems based on hybrid formulations
(2012)
Report de recerca
Accés obertThe objective of this paper is to present a framework for the design of discontinuous Galerkin (dG) methods for elliptic problems. The idea is to start from a hybrid formulation of the problem involving as unknowns the ... -
On the efficient evaluation of hyper-singular integrals in Galerkin surface integral equation formulations via the direct evaluation method
(2010)
Text en actes de congrés
Accés obertIn this paper, the direct evaluation method tailored for the hyper-singular integrals arising in Galerkin surface integral equation formulations is developed.[...] The proposed method utilizes a series of coordinate ... -
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 ... -
Robust mechanisms of ventral furrow invagination require the combination of cellular shape changes
(2009-05)
Article
Accés obertVentral furrow formation in Drosophila is the first large-scale morphogenetic movement during the life of the embryo, and is driven by co-ordinated changes in the shape of individual epithelial cells within the cellular ... -
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 -
Tutorial on Hybridizable Discontinuous Galerkin (HDG) for second-order elliptic problems
(Springuer International Publishing, 2016)
Capítol de llibre
Accés restringit per política de l'editorialThe HDG is a new class of discontinuous Galerkin (DG) methods that shares favorable properties with classical mixed methods such as the well known Raviart-Thomas methods. In particular, HDG provides optimal convergence of ...