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Water Movement in a Finite Layer: Absorption for Constant Water Content at the Surfaces
Author(s) -
Hornung U.,
Parlange J.Y.,
Hogarth W.L.,
Connell L.D.,
Peters R.
Publication year - 1987
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/sssaj1987.03615995005100030001x
Subject(s) - constant (computer programming) , outflow , thermal diffusivity , absorption of water , adsorption , water content , absorption (acoustics) , layer (electronics) , yield (engineering) , content (measure theory) , mechanics , materials science , chemistry , environmental science , soil science , thermodynamics , mathematics , geotechnical engineering , geology , physics , computer science , mathematical analysis , composite material , meteorology , programming language
An accurate, analytical formulation describes very simply the outflow of water from a soil layer when the potentials (water contents) are maintained constant at both surfaces. The analytical formulation is adapted from a previously developed approach to the present problem. The accuracy of the results is checked by comparison with a precise numerical simulation which is greatly simplified for a Brooks and Corey type diffusivity. It is suggested that a laboratory experiment using this configuration would yield the soil properties relevant for adsorption.