2:00 PM-4:00 PM
Room: Executive Salon 1
Nonstationary phenomena, like for instance heat propagation in composite media or filtration flow through heterogeneous porous media, are modeled by a diffusion-convection type equation. Depending on the relative sizes of the space scale of the media heterogeneities, of the oscillations time scale, and of the Peclet number, stochastic homogenization leads to very different models, going from purely dispersive to purely convective models. Because of a possible drastic change in the homogenized limit, a very carefull and rather sophisticated mathematical analysis is necessary. The speakers in this minisymposium will present several situations leading to different scaled up models.
Organizer: Alain P. Bourgeat
University of Saint Etienne, France
tjf, 10/29/98, MMD, 2/18/98