Wetting front pressure head in the infiltration model of Green and Ampt

Wetting front pressure head in the infiltration model of Green and Ampt A theoretical expression relating the wetting front pressure head in the infiltration model of Green and Ampt (1911) to soil characteristics is derived. This expression is identical to that previously suggested by Bouwer (1964) on the basis of an analogy with horizontal flow. It differs from a more complete expression recently proposed by Morel‐Seytoux and Khanji (1974) in that the effect of air mobility is neglected, the need for determining the functional relationship between the relative permeability of air and water saturation thus being avoided. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Water Resources Research Wiley

Wetting front pressure head in the infiltration model of Green and Ampt

Water Resources Research, Volume 12 (3) – Jun 1, 1976

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Publisher
Wiley
Copyright
Copyright © 1976 by the American Geophysical Union.
ISSN
0043-1397
eISSN
1944-7973
D.O.I.
10.1029/WR012i003p00564
Publisher site
See Article on Publisher Site

Abstract

A theoretical expression relating the wetting front pressure head in the infiltration model of Green and Ampt (1911) to soil characteristics is derived. This expression is identical to that previously suggested by Bouwer (1964) on the basis of an analogy with horizontal flow. It differs from a more complete expression recently proposed by Morel‐Seytoux and Khanji (1974) in that the effect of air mobility is neglected, the need for determining the functional relationship between the relative permeability of air and water saturation thus being avoided.

Journal

Water Resources ResearchWiley

Published: Jun 1, 1976

References

  • The vertical movement of water in a stratified porous material, 1, Infiltration
    Childs, Childs; Bybordi, Bybordi
  • Derivation of an equation of infiltration
    Morel‐Seytoux, Morel‐Seytoux; Khanji, Khanji

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