Ensembles fermés de nombres algébriques
Ensembles fermés de nombres algébriques
Sur un ensemble remarquable de nombres algébriques
Fonctions à caractéristique bornée
Sur le produit des conjugués, exterieurs au disque unité, de certains nombres algébriques
Ensembles fermés de nombres algébriques
Convergence of a finite element discretization of the Navier-Stokes equations in vorticity and stream function formulation
Convergence of a finite element discretization of the Navier-Stokes equations in vorticity and stream function formulation
The standard discretization of the Stokes and Navier–Stokes equations in vorticity and stream function formulation by affine finite elements is known for its bad convergence. We present here a modified discretization, we prove that the convergence is improved and we establish error estimates.
Mixed finite element approximation for a coupled petroleum reservoir model
In this paper, we are interested in the modelling and the finite element approximation of a petroleum reservoir, in axisymmetric form. The flow in the porous medium is governed by the Darcy-Forchheimer equation coupled with a rather exhaustive energy equation. The semi-discretized problem is put under a mixed variational formulation, whose approximation is achieved by means of conservative Raviart-Thomas elements for the fluxes and of piecewise constant elements for the pressure and the temperature....
Mixed finite element approximation for a coupled petroleum reservoir model
In this paper, we are interested in the modelling and the finite element approximation of a petroleum reservoir, in axisymmetric form. The flow in the porous medium is governed by the Darcy-Forchheimer equation coupled with a rather exhaustive energy equation. The semi-discretized problem is put under a mixed variational formulation, whose approximation is achieved by means of conservative Raviart-Thomas elements for the fluxes and of piecewise constant elements for the pressure and the temperature....
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