Diffusion of Gases in Porous Environments, Taking into Account the Convective Component

Abstract

In this work we study the process of replacing gas in porous media considering convective motion of one of the gases and dependence of diffusion coefficients on the pressure in them. We have given the formulas to calculate the diffusion coefficients, which depend on the coefficients of interdiffusion of gases and pressure. The numerical experiment shows that the convective component has a significant impact on the process of mixing gases. Key words: gas replacing, porous media, diffusion convective component.