Modelagem Computacional Multiescala de Meios Porosos Carregados Eletricamente

Abstract: Swelling clay consists of large flat sheets of deformable silicate structures negatively charged separated by an aqueous layer. Swelling phenomena result from change in the crystal dimension when water is incorporated into the lattice structure.  For long-range interactions, the swelling is dominated by the electrostatic effect,   governed by the Gouy-Chapman theory of diffuse double layer. The lecture will present a upscaling of this theory to incorporate non-equilibrium effects such as fluid motion and ion transport using the homogenization procedure. This system is coupled with the elasticity problem for the deformation of the clay platelets.The homogenized results include additional  physico-chemical terms such as disjoining pressure.