Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10377841 | Journal of Colloid and Interface Science | 2005 | 4 Pages |
Abstract
This paper presents a new model of dispersion of components in transport processes. It is suggested that the flow velocity may be specified by a Gauss function with relative dispersion of flow velocity β=Ïv/v; the overall dispersion of inert component (in porous as well as in homogeneous medium) may be calculated from the equation Ï=(2Dt/Ï2+(βvt)2)0.5, where D is the diffusion coefficient, t is time, Ï is tortuosity, and v is flow velocity. The most common range of variability of relative dispersion of flow velocity in natural soils is 8-32%. The model is well applicable to column and field experiments.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
S. Pivovarov,