Ara es mostren els items 113-132 de 220

    • HDG-NEFEM with degree adaptivity for stokes flows 

      Sevilla Cárdenas, Rubén; Huerta, Antonio (2018-02-07)
      Article
      Accés obert
      The 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 obert
      This 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 obert
      The 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'editorial
      hree 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 obert
      The 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 obert
      The 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 obert
      A 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 obert
      This 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 ...
    • Hybridisable discontinuous Galerkin solution of geometrically parametrised Stokes flows 

      Sevilla Cárdenas, Rubén; Borchini, Luca; Giacomini, Matteo; Huerta, Antonio (2020-12-01)
      Article
      Accés obert
      This paper proposes a novel computational framework for the solution of geometrically parametrised flow problems governed by the Stokes equation. The proposed method uses a high-order hybridisable discontinuous Galerkin ...
    • Hybridizable discontinuous Galerkin p-adaptivity for wave problems 

      Giorgiani, Giorgio; Fernández Méndez, Sonia; Huerta, Antonio (2012)
      Text en actes de congrés
      Accés obert
      A p-adaptive Hybridizable Discontinuous Galerkin (HDG) method is presented for the solution of wave problems. The HDG method allows to drastically reduce the coupled degrees of freedom of the computation seeking for an ...
    • Hybridizable discontinuous Galerkin p-adaptivity for wave propagation problems 

      Giorgiani, Giorgio; Fernández Méndez, Sonia; Huerta, Antonio (2013)
      Article
      Accés obert
      A 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 ...
    • Hybridizable Discontinuous Galerkin with degree adaptivity for the incompressible Navier-Stokes equations 

      Giorgiani, Giorgio; Fernández Méndez, Sonia; Huerta, Antonio (Elsevier, 2014-07-02)
      Article
      Accés obert
      A 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 ...
    • Hydraulic behaviour of a representative structural volume for containment buildings 

      Jason, L; Pijaudier-Cabot, Gilles; Ghavamian, S; Huerta, Antonio (2007-07)
      Article
      Accés obert
      For particular structures like containment buildings of nuclear power plants, the study of the hydraulic behaviour is of great concern. These structures are indeed the third barrier used to protect the environment in case ...
    • Implementation of a stabilized finite element formulation for the incompressible Navier-Stokes equations based on a pressure gradient projection 

      Codina, Ramon; Blasco Lorente, Jorge; Buscaglia, G C; Huerta, Antonio (2001-10)
      Article
      Accés obert
      We discuss in this paper some implementation aspects of a finite element formulation for the incompressible Navier-Stokes equations which allows the use of equal order velocity-pressure interpolations. The method consists ...
    • Implicit residual type error estimators 

      Huerta, Antonio; Díez, Pedro (Springer, 2016)
      Capítol de llibre
      Accés restringit per política de l'editorial
      The error associated with a numerical solution is intimately related with the residual, that is the lack of verification of the equation by the approximated solution. The residual is computable but obtaining the exact ...
    • Imposing essential boundary conditions in mesh-free methods 

      Fernández Méndez, Sonia; Huerta, Antonio (2004-03)
      Article
      Accés obert
      Imposing essential boundary conditions is a key issue in mesh-free methods. The mesh-free interpolation does not verify the Kronecker delta property and, therefore, the imposition of prescribed values is not as straightforward ...
    • Inclusió de les tic en el portafoli de l’estudiant per a l’ensenyament dels mètodes numèrics 

      Sarrate Ramos, Josep; Rodríguez Ferran, Antonio; Fernández Méndez, Sonia; Sevilla Cárdenas, Rubén; Rozados, Oriol; Díez, Pedro; Huerta, Antonio (2009-02-12T13:49:56Z)
      Comunicació de congrés / Text en actes de congrés
      Accés obert
      La finalitat d’aquest projecte ha estat la millora de la formació global dels estudiants. Concretament, mitjançant la creació d’un portafoli que contingui les diferents activitats que ha realitzat l’estudiant al llarg ...
    • Interactive simulation on a smart Phone 

      Cueto, E.; Huerta, Antonio; Chinesta, Francisco (2012-01)
      Article
      Accés restringit per política de l'editorial
      Traditionally, Simulationbased Engineering Sciences (SBES) made use of static data inputs to perform the simulations. Namely parameters of the model, boundary conditions, etc. were traditionally obtained by experimentation ...
    • Key issues in computational geomechanics 

      Pérez Foguet, Agustí; Rodríguez Ferran, Antonio; Huerta, Antonio (CIMNE, 2000-10)
      Llibre
      Accés obert