Dimethyl ether as a clean fuel has been attracted in the recent decade. It can be produced catalytic reaction of methanol dehydration. Modeling and simulation fixed-bed reactor for this process is desired to predict performance. A Voronoi 3-dimensional pore network model used study effect space on Considering morphological structure one advantages model. In study, modeling was consider mass hea...

Network models that represent the void space of a rock by a lattice of pores connected by throats can predict relative permeability once the pore geometry and wettability are known. Micro-computerized-tomography scanning provides a three-dimensional image of the pore space. However, these images cannot be directly input into network models. In this paper a modified maximal ball algorithm, exten...

Ostwald ripening of trapped bubbles in porous media is relevant to several subsurface (e.g., CO2 storage) and manufacturing fuel cells) applications. A fundamental question common both is: how does an initially heterogeneous distribution bubble sizes, PDFo, evolves towards a stable equilibrium distribution, PDFe? And what We develop pore-network model (PNM) that simulates the temporal evolution...

The field of unsaturated soil mechanics has recently seen the introduction pore network models, which attempt to replicate void structure porous materials. They are robust physically-based simulation tools and have been used simulate constitutive relationships like water retention curves (SWRC) hydraulic conductivity functions. This work aims present a networkmodeling approach for predicting hy...

A mathematical model has been analyzed for in-situ bioremediation with the purpose of remediating organic contaminated soil. Oxygen rich water when passed through the porous media of soil activates the aerobic microorganisms, leading to the biodegradation of the organic content. The model equations comprise three convection-dispersion partial differential solution of these equations has been co...