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ON THE VANISHING OF SOLUTE DIFFUSION IN POROUS MEDIA AT A THRESHOLD MOISTURE CONTENT
Author(s) -
Hunt A. G.,
Ewing R. P.
Publication year - 2003
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj2003.1701
Subject(s) - percolation (cognitive psychology) , diffusion , water content , porous medium , percolation theory , percolation threshold , porosity , statistical physics , zero (linguistics) , content (measure theory) , thermodynamics , mechanics , materials science , physics , mathematics , geology , geotechnical engineering , mathematical analysis , electrical resistivity and conductivity , psychology , conductivity , quantum mechanics , linguistics , philosophy , neuroscience
It was recently shown that the solute diffusion coefficient tends to zero at some threshold water content. We examine this phenomenon in light of recent simulation results from a network diffusion model. The experimental and simulation results agree, inviting an explanation from continuum percolation theory.