Research Article
Jan 1981
Surface Hydrology: IV°Flow in Sloping, Layered Soil
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VIEW THE REPLYAuthors: Dan Zaslavsky and Gideon SinaiAuthor Affiliations
Publication: Journal of the Hydraulics Division
Volume 107, Issue 1
Abstract
In a nonuniform soil with rotational symmetry the properties change along a coordinate n that forms an angle a with the vertical. During infiltration there will be a flow component in the parallel direction s downstream, which is proportional to the rain itself and the slope. The horizontal flow is proportional to the vertical flow, the slope, and the coefficient of anisotropy. The last has been calculated for a soil made up distinct layers. In the limiting case of very thin layers or near the saturation point, the vertical and horizontal conductivities are, respectively, the expected arithmetic and harmonic means familiar from saturated flow. The coefficient of anisotropy increases with the rate of vertical flow to a power greater than unity. The horizontal flow component can be many times the vertical one. It finds application in pollution problems and in the study of the underground water regime.
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Published In
Journal of the Hydraulics Division
Volume 107 • Issue 1 • January 1981
Pages: 53 - 64
Copyright
© 1981 American Society of Civil Engineers.
History
Published in print: Jan 1981
Published online: Feb 3, 2021
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Authors
Affiliations
Dan Zaslavsky
Prof. of Soil and Water Engrg., Faculty of Agricultural Engrg., Soils and Fertilizers Div., Technion-Israel Inst. of Tech., Technion City, Haifa, 32000, Israel
Gideon Sinai
Lect., Faculty of Agricultural Engrg., Soils and Fertilizers Div., Technion-Israel Inst. of Tech., Technion City, Haifa, 32000, Israel
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