Browsing by Author "Idelsohn Barg, Sergio Rodolfo"
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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
Restricted access - publisher's policyA 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
Restricted access - publisher's policyThe 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 ... -
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)
Part of book or chapter of book
Restricted access - publisher's policyWe 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)
External research report
Open AccessIn 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 ... -
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 (2011-12)
Article
Restricted access - publisher's policyIn 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 ... -
A fast and accurate method to solve the incompressible Navier-Stokes equations
Idelsohn Barg, Sergio Rodolfo; Nigro, Norberto; Gimenez, Juan; Rossi, Riccardo; Martí, Julio Marcelo (2013-02)
Article
Restricted access - publisher's policyPurpose: The purpose of this paper is to highlight the possibilities of a novel Lagrangian formulation in dealing with the solution of the incompressible Navier-Stokes equations with very large time steps. Design/meth ... -
A finite point method for adaptive three-dimensional compressible flow calculation
Ortega, Enrique; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo (2008-10)
External research report
Open AccessThe Finite Point Method (FPM) is a meshless technique which is based on both, a Weighted Least-Squares numerical approximation on local clouds of points and a collocation technique which allows obtaining the discrete system ... -
A finite point method for adaptive-three-dimensional compressible flow calculations
Ortega, Enrique; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo (2009-07-30)
Article
Open AccessThe finite point method (FPM) is a meshless technique, which is based on both, a weighted least-squares numerical approximation on local clouds of points and a collocation technique which allows obtaining the discrete ... -
A finite point method for compressible flow
Löhner, Rainald; Sacco Giqueaux, Carlos Gustavo; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo (John Wiley & sons, 2002-03)
Article
Open AccessA weighted least squares finite point method for compressible flow is formulated. Starting from a global cloud of points, local clouds are constructed using a Delaunay technique with a series of tests for the quality of ... -
A finite point method for three-dimensional compressible flow
Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo (2007-09)
External research report
Open Access -
A general stabilized formulation for incompressible fluid flow using finite calculus and the finite element method
Oñate Ibáñez de Navarra, Eugenio; García Espinosa, Julio; Bugeda Castelltort, Gabriel; Idelsohn Barg, Sergio Rodolfo (CIMNE, 2003-11)
Part of book or chapter of book
Restricted access - publisher's policyWe present a general formulation for incompressible fluid flow analysis using the finite element method (FEM). The necessary stabilization for dealing with convective effects and the incompressibility condition are introduced ... -
A general stabilized formulation for incompressible fluid flow using finite calculus and the finite element method
Oñate Ibáñez de Navarra, Eugenio; García Espinosa, Julio; Bugeda Castelltort, Gabriel; Idelsohn Barg, Sergio Rodolfo (2003-03)
External research report
Open AccessWe present a general formulation for incompressible fluid flow analysis using the finite element method (FEM). The necessary stabilization for dealing with convective effects and the incompressibility condition are introduced ... -
A meshless finite point method for the three-dimensional analysis of compressible flow problems involving moving boundaries and adaptivity
Ortega, Enrique; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo; Flores Le Roux, Roberto Maurice (2013-10)
Article
Restricted access - publisher's policyA finite point method for solving compressible flow problems involving moving boundaries and adaptivity is presented. The numerical methodology is based on an upwind-biased discretization of the Euler equations, written ... -
A meshless finite point method for three dimensional analysis of compressible flow problems involving moving boundaries and adaptivity
Ortega, Enrique; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo; Flores Le Roux, Roberto Maurice (2013-10)
Article
Restricted access - publisher's policyA finite point method for solving compressible flow problems involving moving boundaries and adaptivity is presented. The numerical methodology is based on an upwind-biased discretization of the Euler equations, written ... -
A meshless finite point method for three-dimensional analysis of compressible flow problems involving moving boundaries and adaptivity
Ortega, Enrique; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo; Flores Le Roux, Roberto Maurice (2013-10)
Article
Open AccessA finite point method for solving compressible flow problems involving moving boundaries and adaptivity is presented. The numerical methodology is based on an upwind-biased discretization of the Euler equations, written ... -
A monolithic Lagrangian approach for fluid-structure interaction problems
Ryzhakov, Pavel; Rossi, Riccardo; Idelsohn Barg, Sergio Rodolfo; Oñate Ibáñez de Navarra, Eugenio (2010-11)
Article
Restricted access - publisher's policyCurrent work presents a monolithic method for the solution of fluid–structure interaction problems involving flexible structures and free-surface flows. The technique presented is based upon the utilization of a Lagrangian ... -
Analysis of fluid soil-structure interaction problems with the particle finite element method (PFEM)
Oñate Ibáñez de Navarra, Eugenio; Celigueta Jordana, Miguel Ángel; Idelsohn Barg, Sergio Rodolfo; Salazar González, Fernando; Larese De Tetto, Antonia; Rossi, Riccardo; Suárez Arroyo, Benjamín; Morán, R. (2012)
External research report
Open AccessWe present some developments in the Particle Finite Element Method (PFEM) for analysis of coupled problems in mechanics involving fluid-soil-structure interaction (FSSI). The PFEM uses an updated Lagrangian description to ... -
An improved enrichment method for weak discontinuities for thermal problems
Martí, Julio Marcelo; Ortega, Ernesto; Idelsohn Barg, Sergio Rodolfo (2017-07)
Article
Restricted access - publisher's policyThe purpose of this paper is to propose a new elemental enrichment technique to improve the accuracy of the simulations of thermal problems containing weak discontinuities. Design/methodology/approach - The enrichment is ... -
Aplicación de los métodos {alfa} de integración temporal al problema de transmisión del calor con cambio de fase
Crivelli, Luis; Storti, Mario; Idelsohn Barg, Sergio Rodolfo (Centro Internacional de Métodos Numéricos en Ingeniería, 1991)
Article
Open AccessEn trabajos recientes se han propuesto un método de dominio fijo y sin paramétros de regularización para tratar el problema de transmisión del calor con cambio de fase. En este trabajo se estudia la aplicación de la familia ... -
A portable OpenCL-based unstructured edge-based Finite Element Navier-Stokes solver on graphics hardware
Rossi, Riccardo; Mossaiby, Farshid; Idelsohn Barg, Sergio Rodolfo (Elsevier, 2013-07)
Article
Open AccessThe rise of GPUs in modern high-performance systems increases the interest in porting portion of codes to such hardware. The current paper aims to explore the performance of a portable state-of-the-art FE solver on GPU ...