Quantitative characterization of pore-scale disorder effects on transport in homogeneous granular media

被引：79

作者：

Cortis, Andrea ^{[1
]}

Chen, Youjian ^{[1
]}

Scher, Harvey ^{[1
]}

Berkowitz, Brian ^{[1
]}

机构：

[1] Department of Environmental Sciences, Weizmann Institute of Science, 76100 Rehovot, Israel

来源：

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics | 2004年 / 70卷 / 4 1期

基金：

以色列科学基金会;

关键词：

Boundary conditions - Diffusion - Laplace transforms - Mathematical models - Parameter estimation - Porous materials;

D O I：

10.1103/PhysRevE.70.041108

中图分类号：

学科分类号：

摘要：

Breakthrough curves (BTC) of a passive tracer in macroscopically homogeneous granular materials were measured in a series of column experiments. The early and late arrival times were observed to differ systematically from theoretical predictions. An ensemble-averaged distribution of particle transfer rates were found to be in excellent agreement with the entire series of observations. It was proposed that the subtle and residual pore-scale disorder effects in the porous media can account for these observations.

引用

页码：041108 / 1