Exploració per autor "Huerta, Antonio"
Ara es mostren els items 102-121 de 220
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Exact bounds for linear outputs of the advection-diffusion-reaction equation using flux-free error estimates
Parés Mariné, Núria; Díez, Pedro; Huerta, Antonio (2009-01)
Article
Accés obertThe paper introduces a methodology to compute strict upper and lower bounds for inear-functional outputs of the exact solutions of the advection-reaction-diffusion equation. The proposed approach is an alternative to the ... -
Extraction of a crack opening from a continuous approach using regularized damage models
Dufour, F.; Pijaudier-Cabot, Gilles; Choinska, M; Huerta, Antonio (2008-11)
Article
Accés restringit per política de l'editorialCrack opening governs many transfer properties that play a pivotal role in durability analyses. Instead of trying to combine continuum and discrete models in computational analyses, it would be attractive to derive from ... -
Étude de la stabilité d'une formulation incompressible traitée par X-FEM
Legrain, G; Moes, N; Huerta, Antonio (2006-06)
Article
Accés obertThe treatment of (near-)incompressibility is a major concern for the simulation of rubber-like parts, or forming processes. The use of mixed finite element methods is known to prevent the locking of the F.E. approximation ... -
Fast solution of elliptic harbor agitation problems under frequency-direction input spectra by model order reduction and NURBS-enhanced FEM
Modesto Galende, David; Ye, Boyi; Zlotnik, Sergio; Huerta, Antonio (2020-03-01)
Article
Accés obertMany harbor applications are based on the solution of linear elliptic agitation problems for many spectral conditions. One of the main goals consists in computing the linear combination of numerous simulations of the harbor ... -
Finite element analysis of bifurcation in nonlocal strain softening solids
Pijaudier-Cabot, Gilles; Huerta, Antonio (1991-09)
Article
Accés obertProgressive damage in brittle heterogeneous materials produces at the macroscopic level strain softening from which theoretical difficulties arise (e.g. ill-posedness and multiple bifurcation points). This characteristics ... -
Galerkin discontinuo local aplicado a problemas de ondas acústicas: condiciones de frontera absorbente locales de bajo orden
Cadenas, Carlos; Fernández Méndez, Sonia; Huerta, Antonio (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 ... -
Generación automática de mallas no estructuradas y formadas exclusivamente por cuadriláteros sobre superficies curvas en IR3
Sarrate Ramos, Josep; Huerta, Antonio (Universitat Politècnica de Catalunya, 2002)
Article
Accés obertEn este artículo se presenta la extensión del algoritmo de generación de mallas no estructuradas y formadas exclusivamente por cuadriláteros GEN4U a superficies parametrizadas en IR3. Al igual que el algoritmo original, ... -
Generación automática de mallas no estructuradas y formadas exclusivamente por cuadriláteros sobre superficies curvas en R3
Sarrate Ramos, Josep; Huerta, Antonio (2002-05)
Article
Accés obertEn este artículo se presenta la extensión del algoritmo de generación de mallas no estructuradas y formadas exclusivamente por cuadriláteros GEN4U a superficies parametrizadas en R3. Al igual que el algoritmo original, la ... -
Generalized parametric solutions in Stokes flow
Díez, Pedro; Zlotnik, Sergio; Huerta, Antonio (2017-11-01)
Article
Accés obertDesign optimization and uncertainty quantification, among other applications of industrial interest, require fast or multiple queries of some parametric model. The Proper Generalized Decomposition (PGD) provides a separable ... -
Goal oriented error estimation for the element free Galerkin method
Vidal Seguí, Yolanda; Huerta, Antonio (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 adaptivity for shell structures: error assessment and remeshig criteria
Díez, Pedro; Morata Ruano, Irene; Huerta, Antonio (2003-12)
Article
Accés restringit per política de l'editorialThe reliable computation of shell structures requires a tool to assess and control the quality of the finite element solution. For practical purposes, the quality of the numerical solution must be measured using a quantity ... -
HDG-NEFEM with degree adaptivity for stokes flows
Sevilla Cárdenas, Rubén; Huerta, Antonio (2018-02-07)
Article
Accés obertThe NURBS-enhanced finite element method (NEFEM) combined with a hybridisable discontinuous Galerkin (HDG) approach is presented for the first time. The proposed technique completely eliminates the uncertainty induced by ... -
HDGlab: an open-source implementation of the hybridisable discontinuous Galerkin method in MATLAB
Giacomini, Matteo; Sevilla Cárdenas, Rubén; Huerta, Antonio (2020-10-22)
Article
Accés obertThis paper presents HDGlab, an open source MATLAB implementation of the hybridisable discontinuous Galerkin (HDG) method. The main goal is to provide a detailed description of both the HDG method for elliptic problems and ... -
High-order accurate time-stepping schemes for convection-diffusion problems
Donea, J; Roig, B; Huerta, Antonio (2000-02)
Article
Accés obertThe paper discusses the formulation of high-order accurate time-stepping schemes for transient convection–diffusion problems to be combined with finite element methods of the least-squares type for a stable discretization ... -
High-order continuous and discontinuous Galerkin methods for wave problems
Giorgiani, Giorgio; Modesto Galende, David; Fernández Méndez, Sonia; Huerta, Antonio (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 discontinuous Galerkin methods for incompressible flows
Villardi de Montlaur, Adeline de; Fernández Méndez, Sonia; Huerta, Antonio (2010-06)
Text en actes de congrés
Accés obertThe spatial discretization of the unsteady incompressible Navier-Stokes equations is stated as a system of Differential Algebraic Equations (DAEs), corresponding to the conservation of momentum equation plus the constraint ... -
High-order implicit time integration for unsteady incompressible flows
Villardi de Montlaur, Adeline de; Fernández Méndez, Sonia; Huerta, Antonio (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 ... -
High-order methods with LES model for incompressible flows
Villardi de Montlaur, Adeline de; Rebay, Stefano; Fernández Méndez, Sonia; Huerta, Antonio (2010)
Comunicació de congrés
Accés obert -
Hybrid coupling of CG and HDG discretizations based on Nitsche’s method
Spina, Andrea la; Giacomini, Matteo; Huerta, Antonio (Springer, 2020-02)
Article
Accés obertA strategy to couple continuous Galerkin (CG) and hybridizable discontinuous Galerkin (HDG) discretizations based only on the HDG hybrid variable is presented for linear thermal and elastic problems. The hybrid CG-HDG ... -
Hybridisable discontinuous Galerkin formulation of compressible flows
Vila Pérez, Jordi; Giacomini, Matteo; Sevilla Cárdenas, Rubén; Huerta, Antonio (2021)
Article
Accés obertThis work presents a review of high-order hybridisable discontinuous Galerkin (HDG) methods in the context of compressible flows. Moreover, an original unified framework for the derivation of Riemann solvers in hybridised ...