Exploració per autor "Sevilla Cárdenas, Rubén"Més informació

Ara es mostren els items 18-32 de 32

    • 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 ...

    • NEFEM for EULER equations 

      Sevilla Cárdenas, Rubén; Fernández Méndez, Sonia; Huerta, Antonio (2009-02-16T11:29:15Z)
      Text en actes de congrés
      Accés obert
      An improvement of the classical finite element method is proposed in [1], the NURBS-Enhanced Finite Element Method (NEFEM). It considers an exact representation of the geometry by means of the usual CAD description of the ...

    • Nonintrusive proper generalised decomposition for parametrised incompressible flow problems in OpenFOAM 

      Tsiolakis, Vasileios; Giacomini, Matteo; Sevilla Cárdenas, Rubén; Othmer, Carsten; Huerta, Antonio (2020-04)
      Article
      Accés obert
      The computational cost of parametric studies currently represents the major limitation to the application of simulation-based engineering techniques in a daily industrial environment. This work presents the first nonintrusive ...

    • Nonintrusive reduced order model for parametric solutions of inertia relief problems 

      Cavaliere, Fabiola; Zlotnik, Sergio; Sevilla Cárdenas, Rubén; Larráyoz Izcara, Xabier; Díez, Pedro (John Wiley & sons, 2021-08-30)
      Article
      Accés obert
      The Inertia Relief (IR) technique is widely used by industry and produces equilibrated loads allowing to analyze unconstrained systems without resorting to the more expensive full dynamic analysis. The main goal of this ...

    • Numerical integration over 2D NURBS-shaped domains with applications to NURBS-enhanced FEM 

      Sevilla Cárdenas, Rubén; Fernández Méndez, Sonia (2011-10-03)
      Article
      Accés obert
      This paper focuses on the numerical integration of polynomial functions along non-uniform rational B-splines (NURBS) curves and over 2D NURBS-shaped domains, i.e. domains with NURBS boundaries. The integration of the ...

    • NURBS-Enhanced Finite Element Method (NEFEM) 

      Sevilla Cárdenas, Rubén (Universitat Politècnica de Catalunya, 2009-07-24)
      Tesi
      Accés obert
      Aquesta tesi proposa una millora del clàssic mètode dels elements finits (finite element method, FEM) per a un tractament eficient de dominis amb contorns corbs: el denominat NURBS-enhanced finite element method (NEFEM). ...

    • NURBS-enhanced finite element method (NEFEM) 

      Sevilla Cárdenas, Rubén; Fernández Méndez, Sonia; Huerta, Antonio (Wiley and Sons, 2008-10)
      Article
      Accés obert
      An improvement to the classical finite element (FE) method is proposed. It is able to exactly represent the geometry by means of the usual CAD description of the boundary with non-uniform rational B-splines (NURBS). Here, ...

    • NURBS-Enhanced Finite Element Method (NEFEM) 

      Sevilla Cárdenas, Rubén; Fernández Méndez, Sonia; Huerta, Antonio (2011-11)
      Article
      Accés obert
      The development of NURBS-Enhanced Finite Element Method (NEFEM) is revisited. This technique allows a seamless integration of the CAD boundary representation of the domain and the finite element method (FEM). The importance ...

    • NURBS-enhanced finite element method for Euler equations 

      Sevilla Cárdenas, Rubén; Fernández Méndez, Sonia; Huerta, Antonio (2008-07)
      Article
      Accés obert
      In this work, the NURBS-enhanced finite element method (NEFEM) is combined with a discontinuous Galerkin (DG) formulation for the numerical solution of Euler equations of gas dynamics. With NEFEM, numerical fluxes along ...

    • Parametric solutions of turbulent incompressible flows in OpenFOAM via the proper generalised decomposition 

      Tsiolakis, Vasileios; Giacomini, Matteo; Sevilla Cárdenas, Rubén; Othmer, Carsten; Huerta, Antonio (Elsevier, 2022-01-15)
      Article
      Accés obert
      An a priori reduced order method based on the proper generalised decomposition (PGD) is proposed to compute parametric solutions involving turbulent incompressible flows of interest in an industrial context, using OpenFOAM. ...

    • Physics dependent de-featuring, is it a prerequisite for mesh generation? 

      Hassan, Oubay; Sevilla Cárdenas, Rubén (CIMNE, 2015)
      Text en actes de congrés
      Accés obert
      The use of numerical simulation as a design tool in engineering is nowadays routinely practiced. The initial stage of the simulation process is the generation of an appropriate mesh that is designed to capture ...

    • Separated response surfaces for flows in parametrised domains: comparison of a priori and a posteriori PGD algorithms 

      Giacomini, Matteo; Borchini, Luca; Sevilla Cárdenas, Rubén; Huerta, Antonio (2021-11-15)
      Article
      Accés obert
      Reduced order models (ROM) are commonly employed to solve parametric problems and to devise inexpensive response surfaces to evaluate quantities of interest in real-time. There are many families of ROMs in the literature ...

    • Solution of geometrically parametrised problems within a CAD environment via model order reduction 

      Sevilla Cárdenas, Rubén; Zlotnik, Sergio; Huerta, Antonio (2020-01-01)
      Article
      Accés obert
      The main objective of this work is to describe a general and original approach for computing an off-line solution for a set of parameters describing the geometry of the domain. That is, a solution able to include information ...

    • Tutorial on Hybridizable Discontinuous Galerkin (HDG) for second-order elliptic problems 

      Sevilla Cárdenas, Rubén; Huerta, Antonio (Springuer International Publishing, 2016)
      Capítol de llibre
      Accés restringit per política de l'editorial
      The 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 ...

    • Tutorial on Hybridizable Discontinuous Galerkin (HDG) formulation for incompressible flow problems 

      Giacomini, Matteo; Sevilla Cárdenas, Rubén; Huerta, Antonio (Springer, 2020-02-09)
      Capítol de llibre
      Accés restringit per política de l'editorial
      A hybridizable discontinuous Galerkin (HDG) formulation of the linearized incompressible Navier-Stokes equations, known as Oseen equations, is presented. The Cauchy stress formulation is considered and the symmetry of the ...