Exploració per autor "Idelsohn Barg, Sergio Rodolfo"

Ara es mostren els items 21-40 de 80

    • 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; Martí, Julio Marcelo; Carbonell Puigbó, Josep Maria; Ryzhakov, Pavel; Suárez Arroyo, Benjamín (Springer, 2011)
      Capítol de llibre
      Accés restringit per política de l'editorial
      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 (2011-12)
      Article
      Accés restringit per política de l'editorial
      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 ...

    • 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)
      Report de recerca
      Accés obert
      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 ...

    • An improved enrichment method for weak discontinuities for thermal problems 

      Martí, Julio Marcelo; Ortega, Ernesto; Idelsohn Barg, Sergio Rodolfo (2017-07)
      Article
      Accés obert
      The 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 ...

    • 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)
      Report de recerca
      Accés obert
      We 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 ...

    • 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
      Accés obert
      En 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 ...

    • Application of the finite point method to high- Reynolds number compressible flow problems 

      Ortega, Enrique; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo; Flores Le Roux, Roberto Maurice (2014-04)
      Article
      Accés restringit per política de l'editorial
      In this work, the finite point method is applied to the solution of high-Reynolds compressible viscous flows. The aim is to explore this important field of applications focusing on two main aspects: the easiness and ...

    • Avoiding instabilities caused by added mass effects in fluid-structure interaction problems 

      Idelsohn Barg, Sergio Rodolfo; Pin, Facundo del; Rossi, Riccardo (John Wiley & Sons, 2010)
      Capítol de llibre
      Accés restringit per política de l'editorial
      The main goal of this paper is to present a new strategy to avoid the unstable behavior caused by added mass effects in approaches the involve pressure segregation or staggered techniques in incompressible flows. We will ...

    • CFD presenta compresible + incompresible un matrimonio por conveniencia 

      Storti, Mario; Nigro, Norberto; Idelsohn Barg, Sergio Rodolfo (Centro Internacional de Métodos Numéricos en Ingeniería, 1997)
      Article
      Accés obert
      Este trabajo presenta por un lado una breve síntesis de algunas importantes contribuciones dirigida a la unificación de códigos computacionales para flujos tanto compresible como incompresible y por otro un eficiente ...

    • Comparative accuracy and performance assessment of the finite point method in compressible flow problems 

      Ortega, Enrique; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo; Flores Le Roux, Roberto Maurice (Elsevier, 2014-01-20)
      Article
      Accés restringit per política de l'editorial
      A comparative assessment of the Finite Point Method (FPM) is presented. Using a wing-fuselage configuration under transonic inviscid flow conditions as reference test case, the performance of the FPM flow solver is compared ...

    • Condición absorbente discreta no-locaL (DNL) en elementos finitos para modelos de propagación de ondas en el mar 

      Bonet Chaple, Ruberto Pedro; Nigro, Norberto; Storti, Mario; Idelsohn Barg, Sergio Rodolfo (Universitat Politècnica de Catalunya, 1999)
      Article
      Accés obert
      El método de elementos finitos de Galerkin es empleado para obtener soluciones aproximadas de problemas de radiación y dispersión de ondas modeladas por la ecuación de Berkhoff en dominios no acotados. En este trabajo se ...

    • Development and applications of the finite point method to compressible aerodynamics problems 

      Ortega, Enrique; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2014)
      Llibre
      Accés obert
      En este trabajo se aborda el desarrollo del Método de Puntos Finitos (MPF) y su aplicación a problemas de aerodinámica de flujos compresibles. El objetivo principal es investigar el potencial de la técnica sin malla para ...

    • El método de partículas y elementos finitos: aplicaciones en ingenieria de puertos 

      Oñate Ibáñez de Navarra, Eugenio; Celigueta Jordana, Miguel Ángel; Idelsohn Barg, Sergio Rodolfo; Del Pin, F. (2005-12)
      Report de recerca
      Accés obert

    • Elemental enriched spaces for the treatment of weak and strong discontinuous fields 

      Idelsohn Barg, Sergio Rodolfo; Gimenez, Juan Marcelo; Martí, Julio Marcelo; Nigro, Norberto (2017-01)
      Article
      Accés obert
      This paper presents a finite element that incorporates weak, strong and both weak plus strong discontinuities with linear interpolations of the unknown jumps for the modeling of internal interfaces. The new enriched space ...

    • Estrategias para acelerar la convergencia del método DNL 

      Bonet Chaple, Ruberto Pedro; Nigro, Norberto; Storti, Mario; Idelsohn Barg, Sergio Rodolfo (Universitat Politènica de Catalunya, 2000)
      Article
      Accés obert
      La condición de frontera DNL circular es una condición absorbente usada para el cálculo de ondas exteriores. Dos técnicas numéricas son introducidas para acelerar la convergencia del método DNL circular mediante el empleo ...

    • Fast fluid–structure interaction simulations using a displacement-based finite element model equipped with an explicit streamline integration prediction 

      Ryzhakov, Pavel; Martí, Julio Marcelo; Idelsohn Barg, Sergio Rodolfo; Oñate Ibáñez de Navarra, Eugenio (2017-03)
      Article
      Accés obert
      We propose here a displacement-based updated Lagrangian fluid model developed to facilitate a monolithic coupling with a wide range of structural elements described in terms of displacements. The novelty of the model ...

    • Finite point method to solve shallow water equations 

      Ortega, Enrique; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo; Buachart, Chinapat (John Wiley & Sons, 2011-10)
      Article
      Accés restringit per política de l'editorial
      An adaptive Finite Point Method (FPM) for solving shallow water problems is presented. The numerical methodology we propose, which is based on weighted-least squares approximations on clouds of points, adopts an upwind-biased ...

    • Flow behaviour of negatively buoyant jets in immiscible ambient fluid 

      Geyer Traver, Adelina; Phillips, Jeremy C.; Mier Torrecilla, Mónica de; Idelsohn Barg, Sergio Rodolfo; Oñate Ibáñez de Navarra, Eugenio (2012-01)
      Article
      Accés restringit per política de l'editorial
      In this paper we investigate experimentally the injection of a negatively buoyant jet into a homogenous immiscible ambient fluid. Experiments are carried out by injecting a jet of dyed fresh water through a nozzle in the ...

    • Fluid-soil-structure interaction analysis with the particle finite element method 

      Oñate Ibáñez de Navarra, Eugenio; Celigueta Jordana, Miguel Ángel; Idelsohn Barg, Sergio Rodolfo; Salazar González, Fernando; Suárez Arroyo, Benjamín (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2012)
      Capítol de llibre
      Accés restringit per política de l'editorial
      We present some developments and applications of the Particle Finite Element Method (PFEM) for analysis of complex coupled problems in mechanics involving fluid-soil-structure interaction.

    • Fluid-structure interaction problems with strong added-mass effect 

      Idelsohn Barg, Sergio Rodolfo; Pin, Facundo del; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio (2009-12)
      Article
      Accés restringit per política de l'editorial
      In this paper, the so-called added-mass effect is investigated from a different point of view of previous publications. The monolithic fluid–structure problem is partitioned using a static condensation of the velocity ...