Browsing by Subject "Navier-Stokes equations"
Now showing items 1-20 of 56
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A Chimera method for the incompressible Navier-Stokes equations
(John Wiley & Sons, 2014-05-30)
Article
Open AccessThe Chimera method was developed three decades ago as a meshing simplification tool. Different components are meshed independently and then glued together using a domain decomposition technique to couple the equations ... -
A Chimera method for the incompressible Navier-Stokes equations
(2014-05-30)
Article
Restricted access - publisher's policyThe Chimera method was developed three decades ago as a meshing simplification tool. Different components are meshed independently and then glued together using a domain decomposition technique to couple the equations ... -
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 flux-free a posteriori error estimator for the incompressible Stokes problem using a mixed FE formulation
(2010-08-01)
Article
Open AccessIn this contribution, we present an a posteriori error estimator for the incompressible Stokes problem valid for a conventional mixed FE formulation. Due to the saddle-point property of the problem, conventional error ... -
A level-set method for thermal motion of bubbles and droplets
(Institute of Physics (IOP), 2016)
Conference report
Open AccessA conservative level-set model for direct simulation of two-phase flows with thermocapillary effects at dynamically deformable interface is presented. The Navier-Stokes equations coupled with the energy conservation equation ... -
Anàlisi de sensibilitat per un model geofísic
(Universitat Politècnica de Catalunya, 2016-09-22)
Bachelor thesis
Restricted access - author's decisionLes mesures geològiques per identificar paràmetres geofísics es comparen amb el resultat de models numèrics. En particular, per identificar estructures geològiques en escales de l'ordre dels 1000 km, es fan servir models ... -
An efficient spectral code for incompressible flows in cylindrical geometries
(2010-02)
Article
Restricted access - publisher's policyAn efficient and accurate numerical scheme is proposed to solve the incompressible Navier–Stokes equations in a bounded cylinder. The scheme is based on a projection method formulated in primitive variables to maintain the ... -
An explicit/implicit Runge–Kutta-based PFEM model for the simulation of thermally coupled incompressible flows
(Springer, 2019-02)
Article
Restricted access - publisher's policyA 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 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 ... -
A numerical strategy to compute optical parameters in turbulent flow: application to telescopes
(2010-01)
Article
Open AccessWe present a numerical formulation to compute optical parameters in a turbulent air flow. The basic numerical formulation is a large eddy simulation (LES) of the incompressible Navier–Stokes equations, which are approximated ... -
Application of the finite point method to high- Reynolds number compressible flow problems
(2014-04-10)
Article
Restricted access - publisher's policyIn 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 ... -
Arbitrary Lagrangian-Eulerian formulation for fluid-rigid body interaction
(2001-03)
Article
Open AccessA new formulation for two-dimensional fluid–rigid body interaction problems is developed. In particular, vortex-induced oscillations of a rigid body in viscous incompressible flow are studied. The incompressible Navier–Stokes ... -
Convergence towards weak solutions of the Navier-Stokes equations for a finite element approximation with numerical subgrid scale modeling
(2012)
External research report
Open AccessResidual-based stabilized nite element techniques for the Navier-Stokes equations lead to numerical discretizations that provide convection stabilization as well as pressure stability without the need to satisfy an inf-sup ... -
Coupling Biot and Navier-Stokes problems for fluid-poroelastic structure interaction
(2008-02-05)
Article
Open AccessThe interaction between a fluid and a poroelastic structure is a complex problem that couples the Navier-Stokes equations for the fluid with the Biot system for the structure. The finite element approximation of this problem ... -
Development of software for the study of fluid dynamics. Aerodynamical applications
(Universitat Politècnica de Catalunya, 2014-09)
Master thesis (pre-Bologna period)
Open AccessCatalà: El present projecte te com a objectiu la creació d’un software propi, utilitzant el llenguatge de programació C++, que permeti resoldre les Equacions de Navier-Stokes de forma numèrica mitjançant la resolució per ... -
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 ... -
Error analysis of discontinuous Galerkin methods for Stokes problem under minimal regularity
(2012)
External research report
Open AccessIn this article, we analyze several discontinuous Galerkin methods (DG) for the Stokes problem under the minimal regularity on the solution. We assume that the velocity u belongs to [H1 0 ()]d and the pressure p 2 L2 0 ... -
Error estimates for a viscosity-splitting, finite element method for the incompressible Navier-Stokes equations
(2000)
Article
Open Access -
Finite element approximation of 3D non-hydrostatic turbulent coastal ocean flows using a LES model
(2008-01-07)
Article
Open AccessIn this paper we present a stabilized finite element method for three-dimensional, non-hydrostatic, turbulent coastal ocean flows. The model we have developed, named HELIKE, incorporates also surface wind stress, bottom ... -
Fixed-grid numerical modeling of melting and solidification using variable thermo-physical properties - Application to the melting of n-Octadecane inside a spherical capsule
(2015-07-01)
Article
Open AccessA fixed-grid enthalpy model for unstructured meshes and explicit time integration schemes (Galione et al., 2014) is here extended for taking into account the change in density and other thermo-physical properties with the ...
