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Influence of Velocity on Hydrodynamic Dispersion during Unsteady Soil Water Flow
Author(s) -
Bond W. J.,
Smiles D. E.
Publication year - 1983
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/sssaj1983.03615995004700030009x
Subject(s) - dispersion (optics) , flow (mathematics) , flow velocity , absorption (acoustics) , flux (metallurgy) , constant (computer programming) , water flow , mechanics , soil science , attenuation coefficient , absorption of water , environmental science , hydrology (agriculture) , materials science , geotechnical engineering , geology , physics , optics , computer science , metallurgy , composite material , programming language
A recent solution of the equation for hydrodynamic dispersion during unsaturated, unsteady soil water flow is extended to include the velocity dependence of the dispersion coefficient. The effect of this velocity dependence on the solute concentration profiles is illustrated for the case of horizontal constant concentration absorption of water by an initially dry soil. The application of the theory to other soil water flow situations, including constant flux absorption, is also examined.