Now showing items 1-20 of 214

  • 2D particle contact-based meshfree method in CDEM and its application in geotechnical problems 

    Chun, Feng; Li, Shi-hai; Oñate Ibáñez de Navarra, Eugenio (2015)
    Article
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    Continuum-based discrete element method is an explicit numerical method, which is a combination of block discrete element method (DEM) and FEM. When simulating large deformation problems, such as cutting, blasting, water-like ...
  • Absorption of water waves in a two-dimensional numerical flume 

    Castro Alves Oliveira, Tiago; Celigueta Jordana, Miguel Ángel; Gironella Cobos, Xavier; Oñate Ibáñez de Navarra, Eugenio; Sánchez-Arcilla Conejo, Agustín (Centro Internacional de Métodos Numéricos en Ingeniería (CIMNE), 2009)
    Conference report
    Open Access
    In this work the absorption of water waves in a numerical wave flume is discussed in terms of performance and robustness. A general formulation for the analysis of fluidstructure interaction problems using the Particle ...
  • Accurate FIC-FEM formulation for the multidimensional steady-state advection–diffusion–absorption equation 

    Oñate Ibáñez de Navarra, Eugenio; Nadukandi, Prashanth; Miquel Canet, Juan (2017-12)
    Article
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    In this paper we present an accurate stabilized FIC-FEM formulation for the multidimensional steady-state advection-diffusion-absorption equation.The stabilized formulation is based on the Galerkin FEM solution of the ...
  • A compressible Lagrangian framework for the simulation of the underwater implosion of large air bubbles 

    Kamran, Kamran; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo (2013-03)
    Article
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    A fully Lagrangian compressible numerical framework for the simulation of underwater implosion of a large air bubble is presented. Both air and water are considered compressible and the equations for the Lagrangian shock ...
  • A compressible Lagrangian framework for the simulation of underwater implosion problems 

    Kamran, Kazem; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo; Rossi, Riccardo (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2013)
    Book
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    The development of efficient algorithms to understand implosion dynamics presents a number of challenges. The foremost challenge is to efficiently represent the coupled compressible fluid dynamics of internal air and ...
  • A computational model for the evaluation of the spray generation of a wave adaptive modular vessel 

    García Espinosa, Julio; Oñate Ibáñez de Navarra, Eugenio; Serván Camas, Borja; Nadukandi, Prashanth; Becker, Pablo Agustín (2016)
    Conference report
    Open Access
    This paper presents part of the work done within the project ‘Advanced Numerical Simulation and Performance Evaluation of WAM-V ® in Spray Generating Conditions’ developed by the International Center for Numerical Methods ...
  • A contact algorithm for shell problems via Delaunay-based meshing of the contact domain 

    Kamran, Kamran; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio (2013-07)
    Article
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    The simulation of the contact within shells, with all of its different facets, represents still an open challenge in Computational Mechanics. Despite the effort spent in the development of techniques for the simulation of ...
  • A coupled Eulerian-PFEM model for the simulation of overtopping in rockfill dams 

    Larese De Tetto, Antonia; Oñate Ibáñez de Navarra, Eugenio; Rossi, Riccardo (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2012)
    Book
    Open Access
  • Adjoint-based adaptive finite element method for the compressible Euler equations using finite calculus 

    Kouhi Esfahani, Mohammad; Oñate Ibáñez de Navarra, Eugenio; Mavriplis, Dimitri (2015-10)
    Article
    Open Access
    In this paper, an adjoint-based error estimation and mesh adaptation framework is developed for the compressible inviscid flows. The algorithm employs the Finite Calculus (FIC) scheme for the numerical solution of the flow ...
  • Advanced computational intelligence system for inverse aeronautical design optimisation 

    Lee, D.S.; Periaux, Jacques; Oñate Ibáñez de Navarra, Eugenio; Gonzalez, L. (Institute of Electrical and Electronics Engineers (IEEE), 2011)
    Conference report
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    Computational Intelligence Systems (CIS) is one of advanced softwares. CIS has been important position for solving single-objective / reverse / inverse and multi-objective design problems in engineering. The paper hybridise ...
  • Advanced solid elements for sheet metal forming simulation 

    Mataix, Vicente; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio; Flores, Fernando G (Institute of Physics (IOP), 2016)
    Conference report
    Open Access
    The solid-shells are an attractive kind of element for the simulation of forming processes, due to the fact that any kind of generic 3D constitutive law can be employed without any additional hypothesis. The present work ...
  • Advances in particle packing algorithms for generating the medium in the Discrete Element Method 

    Recarey Morfa, Carlos Alexander; Pérez, Irvin; Roselló, Roberto; Muniz de Farias, Márcio; Hernández Zubeldia, Elizabeth; Giraldo, Robinson; Oñate Ibáñez de Navarra, Eugenio (2019-03)
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    Several theoretical contributions in order to establish a particle packing methodology are presented. In this respect, a generic formulation of a new method for packing particles based on a constructive advancing front ...
  • Advances in the development of a FEM model for evaluation of a Surface-Effect Ship (SES) including skirt dynamics 

    García Espinosa, Julio; Serván Camas, Borja; Capua, Daniel di; Ubach Fuentes, Pere-Andreu; Oñate Ibáñez de Navarra, Eugenio (2012)
    Conference report
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    El “Innovative Naval Prototype Transformable Craft” (T-Craft) es un nuevo concepto de buque desarrollado por la marina de los Estados Unidos de América para la conexión de una base en alta mar con tierra. El TCraft puede ...
  • Advances in the development of a FEM model for evaluation of a Surface-Effect Ship (SES) including skirt dynamics 

    García Espinosa, Julio; Serván Camas, Borja; Capua, Daniel di; Ubach Fuentes, Pere-Andreu; Oñate Ibáñez de Navarra, Eugenio (2013-12-01)
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  • Advances in the development of an unstructured FEM solver for fluid-structure interaction problems in marine engineering 

    García Espinosa, Julio; Coll Sans, Abel; Oñate Ibáñez de Navarra, Eugenio (Centro Internacional de Métodos Numéricos en Ingeniería (CIMNE), 2009)
    Conference report
    Open Access
    This work presents different advances in the development of a formulation for fluid-structure interaction analysis in marine applications using the FIC stabilized finite element method (FEM). The free surface evolution is ...
  • Advances in the development of the discrete element method for excavation processes 

    Labra, C.; Oñate Ibáñez de Navarra, Eugenio; Rojek, J. (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2012)
    Book
    Open Access
    This work presents new developments of the discrete element method improving e ciency and accuracy of modelling of rock-like materials, especially in excavation processes.
  • Advances in the Discrete Element Method for drilling mechanics problems 

    Oñate Ibáñez de Navarra, Eugenio; Arrufat Garcia, Ferran; Zárate Araiza, José Francisco; Ubach Fuentes, Pere-Andreu; Gandikota, Varadaraju; Ring, Lev (2013)
    Conference report
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    We present recent developments in the Discrete Element method (DEM) for analysis of drilling mechanics problems typical in the oil and gas industry. A new local DEM constitutive model able to predict the non-linear behavior ...
  • Advances in the modelling of excavation and cutting tool wear with the particle finite element method 

    Carbonell Puigbó, Josep Maria; Oñate Ibáñez de Navarra, Eugenio; Suárez Arroyo, Benjamín (Aedificatio, 2013)
    Conference report
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    This work presents the new advances on the Particle Finite Element Method (PFEM) for the modeling of excavation processes and the wear of the cutting tools. In the PFEM [3, 9, 6], the continuum solid domains are defined ...
  • Advances in the particle finite element method (PFEM) for solving coupled problems in engineering 

    Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo; Celigueta Jordana, Miguel Ángel; Rossi, Riccardo; Marti, J.; Carbonell Puigbó, Josep Maria; Ryzhakov, Pavel; Suárez Arroyo, Benjamín (Springer, 2011)
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    We present some developments in the formulation of the Particle Finite Element Method (PFEM) for analysis of complex coupled problems on fluid and solid mechanics in engineering accounting for fluid-structure interaction ...
  • Advances in the simulation of multi-fluid flows with the particle finite element method. Application to bubble dynamics 

    Mier Torrecilla, Mónica de; Idelsohn Barg, Sergio Rodolfo; Oñate Ibáñez de Navarra, Eugenio (2010)
    Article
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    In this work, we extend the Particle Finite Element Method (PFEM) to multi-fluid flow problems with the aim of exploiting the fact that Lagrangian methods are specially well suited for tracking interfaces. We develop a ...