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Comparisons of Calculated and Measured Capillary Potentials from Line Sources
Author(s) -
Thomas Adrian W.,
Duke Harold R.,
Zachmann David W.,
Kruse E. Gordon
Publication year - 1976
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/sssaj1976.03615995004000010008x
Subject(s) - capillary action , bin , infiltration (hvac) , mechanics , flux (metallurgy) , steady state (chemistry) , line source , environmental science , line (geometry) , water potential , soil science , hydrology (agriculture) , mathematics , materials science , soil water , geotechnical engineering , thermodynamics , physics , chemistry , geology , geometry , optics , algorithm , metallurgy
This paper is a sequel to D. W. Zachmann and A. W. Thomas' (1973) development of equations describing steady infiltration from line sources. Calculated distributions of capillary potentials are compared with those measured in a soil bin designed to model the water distribution from a subsurface irrigation system. Limitations of the steady‐state equations for predicting capillary potentials are given. A procedure for selecting lateral depth and spacing to attain a given matric flux potentials is also given.