期刊
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
卷 120, 期 1, 页码 182-190出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2014JB011645
关键词
diffusion; Effective Medium Approximation; percolation theory; saturation; universal scaling
Understanding and accurate prediction of gas or liquid phase (solute) diffusion are essential to accurate prediction of contaminant transport in partially saturated porous media. In this study, we propose analytical equations, using concepts from percolation theory and the Effective Medium Approximation (EMA) to model the saturation dependence of both gas and solute diffusion in porous media. The predictions of our theoretical approach agree well with the results of nine lattice Boltzmann simulations. We find that the universal quadratic scaling predicted by percolation theory, combined with the universal linear scaling predicted by the EMA, describes diffusion in porous media with both relatively broad and extremely narrow pore size distributions.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据