Browsing by Author "Martí, Julio Marcelo"
Now showing items 1-12 of 12
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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 semi-explicit multi-step method for solving incompressible navier-stokes equations
(Multidisciplinary Digital Publishing Institute, 2018-01)
Article
Open AccessThe fractional step method is a technique that results in a computationally-efficient implementation of Navier–Stokes solvers. In the finite element-based models, it is often applied in conjunction with implicit time ... -
Advances in the particle finite element method (PFEM) for solving coupled problems in engineering
(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 ... -
An explicit/implicit Runge–Kutta-based PFEM model for the simulation of thermally coupled incompressible flows
(Springer, 2020-01)
Article
Open AccessA semi-explicit Lagrangian scheme for the simulation of thermally coupled incompressible flow problems is presented. The model relies on combining an explicit multi-step solver for the momentum equation with an implicit ... -
An explicit–implicit finite element model for the numerical solution of incompressible Navier–Stokes equations on moving grids
(2019-06)
Article
Restricted access - publisher's policyIn this paper an efficient mesh-moving Finite Element model for the simulation of the incompressible flow problems is proposed. The model is based on a combination of the explicit multi-step scheme (Runge–Kutta) with an ... -
An improved enrichment method for weak discontinuities for thermal problems
(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 ... -
Elemental enriched spaces for the treatment of weak and strong discontinuous fields
(2017-01)
Article
Open AccessThis 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 ... -
Fast fluid–structure interaction simulations using a displacement-based finite element model equipped with an explicit streamline integration prediction
(2017-03)
Article
Open AccessWe 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 ... -
Improving accuracy of the moving grid particle finite element method via a scheme based on Strang splitting
(2020-09)
Article
Restricted access - publisher's policyParticle finite element method (PFEM) is a computational tool suitable for simulating fluid dynamics problems characterized by presence of moving boundaries. In this paper a new version of the method for incompressible ... -
Solution of Navier–Stokes equations on a fixed mesh using conforming enrichment of velocity and pressure
(Springer, 2020-01)
Article
Open AccessSimulation of fluid flows of multi-materials is an intriguing topic in computational mechanics. Capturing the physics of the interface between different materials poses a challenge because of the discontinuities that may ... -
The particle finite element method for multi-fluid flows
(Springer, 2011)
Part of book or chapter of book
Restricted access - publisher's policyThis paper presents the Particle Finite Element Method (PFEM) and its application to multi-fluid flows. Key features of the method are the use of a Lagrangian description to model the motion of the fluid particles (nodes) ...
