4 papers
Homogenization of stiff inclusions through network approximation
David Gérard-Varet, Alexandre Girodroux-Lavigne
We investigate the homogenization of inclusions of infinite conductivity, randomly stationary distributed inside a homogeneous conducting medium. A now classical result by Zhikov s…
On the correction to Einstein's formula for the effective viscosity
David Gérard-Varet, Amina Mecherbet
This paper is a follow-up of article [6], on the derivation of accurate effective models for viscous dilute suspensions. The goal is to identify an effective Stokes equation provid…
The influence of boundary conditions on the contact problem in a 3D Navier-Stokes Flow
David Gérard-Varet, Matthieu Hillairet, Chao Wang
We consider the free fall of a sphere above a wall in a viscous incompressible fluid. We investigate the influence of boundary conditions on the finite-time occurrence of contact b…
Computation of the drag force on a rough sphere close to a wall
David Gérard-Varet, Matthieu Hillairet
We consider the effect of surface roughness on solid-solid contact in a Stokes flow. Various models for the roughness are considered, and a unified methodology is given to derive t…