Computation of dispersion diagrams for periodic porous materials modeled as equivalent fluids

Solute transport in porous media: Dispersion tensor of periodic networks

Transport of contaminants in soils, nutrients in bones, and movement of minerals in soils are examples of solute transport in porous media. Theoretical methods used to study solute transport in porous media include numerical experiments on networks, on media with fractal geometry and percolation methods; method of moments and homogenization techniques on periodic media, and method of moments on...

Time-periodic Electroosmotic Flow of Non-newtonian Fluids in Microchannels

The alternating current electroosmotic flow of a non-Newtonian power-law fluid is studied in a circular microchannel. A numerical method is employed to solve the non-linear Poisson-Boltzmann and the momentum equations. The main parameters which affect the flow field are the flow behavior index, the dimensionless zeta potential and the dimensionless frequency. At very low dimensionless frequenci...

Mean field kinetic theory for a lattice gas model of fluids confined in porous materials.

We consider the mean field kinetic equations describing the relaxation dynamics of a lattice model of a fluid confined in a porous material. The dynamical theory embodied in these equations can be viewed as a mean field approximation to a Kawasaki dynamics Monte Carlo simulation of the system, as a theory of diffusion, or as a dynamical density functional theory. The solutions of the kinetic eq...

Chapter 6.11: Cements as Porous Materials

Global phase diagrams for dipolar fluids.

Fluids of molecules or particles interacting through dipole forces describe polar liquids and colloidal suspensions such as ferroQuids and electrorheological fluids. Phase diagrams for systems with strong dipolar coupling are not precisely known. Possible liquid state phase transitions include phase separation and spontaneous polarization. We present a set of generic phase diagrams for the Huid...