Browsing by Author "Idelsohn Barg, Sergio Rodolfo"
Now showing items 1-20 of 82
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A compressible Lagrangian framework for the simulation of the underwater implosion of large air bubbles
(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
(Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2013)
Book
Open AccessThe 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 fast and accurate method to solve the incompressible Navier-Stokes equations
(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 element model for the simulation of the UL-94 burning test
(2018-11)
Article
Open AccessThe tendency of the polymers to melt and drip when they are exposed to external heat source play a very important role in the ignition and the spread of fire. Numerical simulation is a promising methodology for predicting ... -
A finite point method for adaptive three-dimensional compressible flow calculation
(2008-10)
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
(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
(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
(2007-09)
Research report
Open Access -
A general stabilized formulation for incompressible fluid flow using finite calculus and the finite element method
(2003-03)
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 general stabilized formulation for incompressible fluid flow using finite calculus and the finite element method
(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 meshless finite point method for three dimensional analysis of compressible flow problems involving moving boundaries and adaptivity
(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
(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
(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 ... -
A portable OpenCL-based unstructured edge-based Finite Element Navier-Stokes solver on graphics hardware
(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 ... -
A pseudo-DNS method for the simulation of incompressible fluid flows with instabilities at different scale
(Springer, 2020-01)
Article
Open AccessIn this work, a new model for the analysis of incompressible fluid flows with massive instabilities at different scales is presented. It relies on resolving all the instabilities at all scales without any additional model, ... -
A reduced-order model based on the coupled 1D-3D finite element simulations for an efficient analysis of hemodynamics problems
(2014-05)
Article
Open AccessA reduced-order model for an efficient analysis of cardiovascular hemodynamics problems using multiscale approach is presented in this work. Starting from a patient-specific computational mesh obtained by medical imaging ... -
A semi-analytical model for droplet dynamics on the GDL surface of a PEFC electrode
(2015-04)
Article
Open AccessWater management is one of the key factors in Proton Exchange Fuel Cell (PEFC) performance. The water produced within the fuel cell is evacuated through the gas channels, but at high current densities water can block the ... -
A state of the art review of the Particle Finite Element Method (PFEM)
(2020-11)
Article
Open AccessThe particle finite element method (PFEM) is a powerful and robust numerical tool for the simulation of multi-physics problems in evolving domains. The PFEM exploits the Lagrangian framework to automatically identify and ... -
A unified monolithic approach for multi-fluid flows and fluid-structure interaction using the Particle Finite Element Method with fixed mesh
(2015-06)
Article
Open AccessThis paper describes a strategy to solve multi-fluid and fluid-structure interaction (FSI) problems using Lagrangian particles combined with a fixed finite element (FE) mesh. Our approach is an extension of the fluid-only ... -
A-posteriori error estimation for the finite point method with applications to compressible flow
(2017-04)
Article
Open AccessAn a-posteriori error estimate with application to inviscid compressible flow problems is presented. The estimate is a surrogate measure of the discretization error, obtained from an approximation to the truncation terms ...
