Exploració per autor "Díez, Pedro"
Ara es mostren els items 74-93 de 145
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Fast r-adaptivity for multiple queries of heterogeneous stochastic material fields
Cottereau, Régis; Díez, Pedro (2015-10-01)
Article
Accés obertWe present an r-adaptivity approach for boundary value problems with randomly fluctuating material parameters solved through the Monte Carlo or stochastic collocation methods. This approach tailors a specific mesh for each ... -
Fast r-adaptivity for multiple queries of heterogeneous stochastic materialfields
Cottereau, R.; Díez, Pedro (CIMNE, 2015)
Text en actes de congrés
Accés obertThe Monte Carlo approach in stochastic modeling requires multiple queries to numerical (typicallyfinite element) solutions of similar problems. In the case of random material fields, only the materialproperties vary between ... -
Fast stokes flow simulations for geophysical-geodynamic inverse problems and sensitivity analyses based on reduced order modeling
Ortega Gelabert, Olga; Zlotnik, Sergio; Afonso, Juan Carlos; Díez, Pedro (2020-03-14)
Article
Accés obertMarkov chain Monte Carlo (MCMC) methods have become standard in Bayesian inference and multi-observable inversions in almost every discipline of the Earth sciences. In the case of geodynamic and/or coupled geophysical-geodynamic ... -
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 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 ... -
Goal-oriented error estimation for transient parabolic problems
Díez, Pedro; Calderón, Giovanni (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 ... -
Goal-oriented h-adaptivity for the Helmholtz equation: error estimates, local indicators and refinement strategies
Steffens, Lindaura; Parés Mariné, Núria; Díez, Pedro (2011-01-14)
Article
Accés obertThis paper introduces a new goal-oriented adaptive technique based on a simple and effective post-process of the finite element approximations. The goal-oriented character of the estimate is achieved by analyzing both the ... -
Goal-oriented space-time adaptivity for transient dynamics using a modal description of the adjoint solution
Verdugo Rojano, Francesc; Parés Mariné, Núria; Díez, Pedro (2014-08-01)
Article
Accés obertThis article presents a space-time adaptive strategy for transient elastodynamics. The method aims at computing an optimal space-time discretization such that the computed solution has an error in the quantity of interest ... -
Guaranteed energy error bounds for the Poisson equation using a flux-free approach: solving the local problems in subdomains
Parés Mariné, Núria; Santos, Hugo; Díez, Pedro (2009-03-23)
Article
Accés obert -
Hierarchical x-fem applied to n-phase flow
Zlotnik, Sergio; Díez, Pedro (2009-06-02T09:26:48Z)
Text en actes de congrés
Accés obertIn this work we proposed an extencion of the level set technique to track any number of free surfaces. This extension is based in a hierarchical ordering of several level set functions. To complete the X–FEM approach, the ... -
Hierarchical X-FEM for n-phase flow (n > 2)
Zlotnik, Sergio; Díez, Pedro (2009-01)
Article
Accés obertThe eXtended Finite Element Method (X-FEM) has been successfully used in two-phase flow problems involving a moving interface. In order to simulate problems involving more than two phases, the X-FEM has to be further ... -
Hybrid analytical-numerical methodology for computationally efficient pre-design analysis of fluid-structure interaction
Rubio, Jordi; Iakovlev, Serguei; Díez, Pedro (CIMNE, 2015)
Text en actes de congrés
Accés obertAnalytical approach to modeling the interaction between submerged elastic structures and non-stationary loads has long been recognized as an attractive tool of engineering analysis, especially at the pre-design stage ... -
Implicit residual type error estimators
Huerta, Antonio; Díez, Pedro (Springer, 2016)
Capítol de llibre
Accés restringit per política de l'editorialThe 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 ... -
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 obertLa 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 ... -
Integrated tool for the acoustic assessment and monitoring of marine activities and operations
Moura, André; Lopes, Diogo; Cruz, Erica; Hospital Bravo, Raúl; Sarrate Ramos, Josep; Díez, Pedro (2015)
Text en actes de congrés
Accés obert -
Internet-based tutorial providing mathematical complements for technical master students: TIMEMathCom
Estela Carbonell, M. Rosa; Díez, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2016)
Text en actes de congrés
Accés restringit per política de l'editorialThe mathematical background of international students in Technical Master programs is pretty heterogeneous. They often lack of a sound basis in specific topics, which are necessary to follow the Master. Filling this gap ... -
Introduction to the finite element method
Oñate Ibáñez de Navarra, Eugenio; Díez, Pedro; Zárate Araiza, José Francisco; Larese De Tetto, Antonia (Universitat Politècnica de Catalunya, 2008-10)
Apunts
Accés obert -
La Ingeniería Computacional en la Escuela de Caminos de Barcelona
Huerta, Antonio; Díez, Pedro; Fernández Méndez, Sonia; Pérez Foguet, Agustí; Rodríguez Ferran, Antonio; Sarrate Ramos, Josep (UCLM-ETS Ingenieros de Caminos Ciudad Real, 2003)
Text en actes de congrés
Accés obertLa ingeniería computacional se ha consolidado ya como una disciplina horizontal en el ámbito de la ingeniería civil. La modelización numérica es, cada vez más, una alternativa para el cálculo y diseño en inge niería a los ... -
Maths complements for Computational Mechanics a ATENEA Labs
Estela Carbonell, M. Rosa; Díez, Pedro; Saà Seoane, Joel; Villalonga Pons, Juana María (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2010-06-04)
Comunicació de congrés
Accés obertEls estudiants que ingressen als màsters en anglès de la UPC provinents d’altres països sovint tenen carències en coneixements bàsics de matemàtiques que s’imparteixen al primer cicle (Bachelor). El nostre projecte consisteix ... -
Meshless methods in dual analysis: theoretical and implementation issues
Ivannikov, Vladimir; Tiago, C.; Almeida, José Paulo Moitinho de; Díez, Pedro (2013-12)
Article
Accés obertThis paper presents a meshless implementation of dual analysis for 2D linear elasticity problems. The derivation of the governing systems of equations for the discretized compatible and equilibrated models is detailed and ...