Browsing by Subject "Equacions de Navier-Stokes -- Mètodes numèrics"
Now showing items 1-15 of 15
-
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 fractional-step method for the incompressible Navier-Stokes equations related to a predictor-multicorrector algorithm
(1998-12)
Article
Open AccessAn implicit fractional-step method for the numerical solution of the time-dependent incompressible Navier-Stokes equations in primitive variables is studied in this paper. The method, which is first-order-accurate in the ... -
A self-adaptive strategy for the time integration of navier-stokes equations
(2011-08)
Article
Restricted access - publisher's policyAn efficient self-adaptive strategy for the explicit time integration of Navier-Stokes equations is presented. Unlike the conventional explicit integration schemes, it is not based on a standard CFL condition. Instead, the ... -
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 implicit stabilized finite element method for the compressible Navier-Stokes equations using finite calculus
(2015-07)
Article
Open AccessA new implicit stabilized formulation for the numerical solution of the compressible Navier-Stokes equations is presented. The method is based on the finite calculus (FIC) scheme using the Galerkin finite element method ... -
Dynamic term-by-term stabilized finite element formulation using orthogonal subgrid-scales for the incompressible Navier–Stokes problem
(2019-06)
Article
Restricted access - publisher's policyIn this paper, we propose and analyze the stability and the dissipative structure of a new dynamic term-by-term stabilized finite element formulation for the Navier–Stokes problem that can be viewed as a variational ... -
Estudio para la resolución numérica de las ecuaciones de conservación de la masa, cantidad de movimiento y energía, aplicado a la influencia del confinamiento de un fluido en la aerodinámica de un cuerpo romo
(Universitat Politècnica de Catalunya, 2015-06)
Bachelor thesis
Open AccessEl objetivo principal del estudio desarrollado a lo largo de este trabajo es el de aprender a realizar y verificar códigos CFD (Computacional Fluid Dynamics) mediante el lenguaje C++, capaces de resolver y estudiar la ... -
Estudio para la resolución numérica de las ecuaciones de conservación de masa, cantidad de movimiento y energía para su aplicación en el estudio de la influencia del ángulo de ataque en la aerodinámica de un cilindro cuadrado
(Universitat Politècnica de Catalunya, 2015-06)
Bachelor thesis
Open AccessEl presente estudio tiene como objetivo el aprendizaje de las bases del estudio por métodos numéricos de las ecuaciones que gobiernan los procesos clásicos de la mecánica de fluidos y su aplicación en el desarrollo de ... -
Implementation of a stabilized finite element formulation for the incompressible Navier-Stokes equations based on a pressure gradient projection
(2001-10)
Article
Open AccessWe discuss in this paper some implementation aspects of a finite element formulation for the incompressible Navier-Stokes equations which allows the use of equal order velocity-pressure interpolations. The method consists ... -
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 ... -
Mixed aggregated finite element methods for the unfitted discretization of the Stokes problem
(2018-12-18)
Article
Open AccessIn this work, we consider unfitted finite element methods for the numerical approximation of the Stokes problem. It is well-known that these kinds of methods lead to arbitrarily ill-conditioned systems and poorly approximated ... -
Modelization of the Low-Mach Navier Stokes equations in unstructured meshes
(2011)
Conference lecture
Restricted access - publisher's policyIn this paper a Low-Mach number approximation of the Navier Stokes Equations in unstructured meshes is presented. Both staggered and collocated formulations for unstructured grids will be used.The aim is to develop a ... -
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 ... -
Variational multiscale error estimators for the adaptive mesh refinement of compressible flow simulations
(2018-08)
Article
Open AccessThis article investigates an explicit a-posteriori error estimator for the finite element approximation of the compressible Navier–Stokes equations. The proposed methodology employs the Variational Multi-Scale framework, ... -
VOF/Navier-Stokes implementation on 3D unstructured staggered meshes. Application to the Richtmyer-Meshkov instability
(2011)
Conference lecture
Restricted access - publisher's policyThe numerical simulation of interfacial and free surface flows is a vast and interesting topic in the areas of engineering and fundamental physics, such as the study of liquid-gas interfaces, formation of droplets, bubbles ...
