32 datasets found

A new point of view is proposed for the simulation of plasmas using the kinetic model which couples the equations of Vlasov for the distribution of particles and the...

date de rédaction le 07 avril 2006

Mes travaux de recherche portent sur la mécanique des fluides, et plus précisément sur les systèmes de particules, avec plusieurs domaines d'applications : le poumon...

This thesis is about two topics. In a first part, we look at the existence of stationnary solutions of mean curbature problem with an external fields thanks to the...

After reviewing the methods for solving inverse problems deterministic and stochastic problems directly, this thesis proposes a method for identification of stochastic...

The thesis was submitted in may 2012 at the faculty of mathematics and natural science of the university of Bonn and defended in July 2012.

Dans ce papier, nous étudions une méthode multigrille adaptée pour la résolution des EDP du second ordre sur des maillages étirés. Nous utilisons l'approche...

This work is devoted to the theoretical and numerical study of Hartree-Fock-Bogoliubov (HFB) theory for attractive quantum systems, which is one of the main methods in...

A mathematical model of a composite material randomly reinforced such as TexSol ( mixture of sand and wire) is proposed. For this study, a variational asymptotic...

This thesis analyzes a bone healing model which is then coupled with a model of fluid flow to model bone growth in bioreactors (systems that mimic the in vivo...

We present a new scheme for the discretization of heterogeneous anisotropic diffusion problems on general meshes. With light assumptions, we show that the algorithm...

Waveletteori er en forholdsvis ny matematisk disciplin, som har vakt stor interesse indenfor b°ade teoretisk og anvendt matematik i løbet af det seneste °arti. De...

This report analyzes and validates possible applications of some model reduction methods for direct simulations, and the solving of inverse problems of parameter...

Rapport interne.

Rapport interne.

Rapport interne.

International audience

The main objective of this thesis is to accelerate deflated Conjugate Gradient solvers used for solving the pressure Poisson equation, for the simulation of low-Mach...

The friction noise between two rough surfaces is caused by the vertical vibration generated by inter-asperity impacts of sliding solids. This phenomenon involves the...

We deal with some mathematical questions in fluid mechanics. The framework of this study is decomposed in two thematics : bi-layer models with free surface or...