Measurement of Effective Oxygen Diffusivity in Micro Porous Media with Moisture(Thermal Engineering)

Micro-structure Models of Porous Media

Asymptotic Behaviour of Wetting Fronts in Porous Media with Exponential Moisture Diffusivity

Abstract. We investigate the asymptotic behaviour of the wetting front arising from unsaturated flow in porous media wherein the liquid saturation θ obeys a nonlinear diffusion equation having moisture diffusivity that is an exponential function D(θ) = Do exp(βθ). For values of the physical parameters corresponding to actual porous media, the diffusivity at the residual value of saturation is D...

Experimental Tests of Micro-concretion Nucleation in Porous Media

Introduction: Here we examine nucleation of self-organized spherical precipitates in porous and permeable media. Spheroidal concretions are common in geological environments and can arise through various geological or biological mechanisms, such as growth around an already existing nucleus (e.g. organic matter). Iron oxide concretions, however, often lack any obvious nucleus [1] and their prese...

Saturated Porous Media Dynamics with Application to Earthquake Engineering

Electroosmosis in homogeneously charged micro- and nanoscale random porous media.

Electroosmosis in homogeneously charged micro- and nanoscale random porous media has been numerically investigated using mesoscopic simulation methods which involve a random generation-growth method for reproducing three-dimensional random microstructures of porous media and a high-efficiency lattice Poisson-Boltzmann algorithm for solving the strongly nonlinear governing equations of electroos...