Open AccessStudy of the transport modeling by diffusion of pollutants through porous materials
Publication year - 2020
Publication title -
biointerface research in applied chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.216
H-Index - 11
ISSN - 2069-5837
DOI - 10.33263/briac103.532535
Subject(s) - diffusion , range (aeronautics) , nonlinear system , statistical physics , porous medium , mechanics , biological dispersal , materials science , porosity , thermodynamics , physics , composite material , population , demography , quantum mechanics , sociology
This paper presents how distance function dispersal produces diffusion range expansion of the contamination. We construct a stratified diffusion model, which describes the dynamics of the size distribution of colonies created by distance migrants of metal ions. The model consists of a Fick's equation combined with a Navier-stokes. The model provides an estimate of range expansion in terms of the rate adsorption due to neighborhood diffusion, the leap time and the geometric form. The results explain various types of nonlinear range expansion observed in materials or biomaterials.