TECHNICAL PAPERS
Mar 1, 1999

Effective Hydraulic Conductivity for Partially Saturated Porous Media

Publication: Journal of Irrigation and Drainage Engineering
Volume 125, Issue 2

Abstract

In this paper a method of obtaining the effective hydraulic conductivity for partially saturated porous media is proposed. The governing moisture transport equation was modified by introducing a velocity term to make it analogous with the longitudinal dispersion equation. This equation was solved using a transformed coordinate system where the origin is moving at the mean velocity. The effective hydraulic conductivity was derived by an approach similar to the derivation of the longitudinal dispersion coefficient subject to certain limitations. The validation of the proposed approach was tested using a randomly generated set of local soil water data.

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References

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Information

Published In

Go to Journal of Irrigation and Drainage Engineering
Journal of Irrigation and Drainage Engineering
Volume 125Issue 2March 1999
Pages: 82 - 89

History

Received: Dec 15, 1997
Published online: Mar 1, 1999
Published in print: Mar 1999

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Authors

Affiliations

Amithirigala W. Jayawardena
Pujitha B. G. Dissanayake
Member, ASCE,
Sr. Lect., Dept. of Civ. Engrg., Univ. of Hong Kong, Hong Kong.
Grad. Student, Dept. of Civ. Engrg., Univ. of Hong Kong, Hong Kong.

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