Modified approach to capillary hysteresis based on a similarity hypothesis

Modified approach to capillary hysteresis based on a similarity hypothesis We present herein a simplified approach to the capillary hysteresis phenomenon. This approach is based on a similarity hypothesis resembling that of Philip (1964), but different basic assumptions lead to a quite simple and handy method of predicting the relationships between the capillary head and the water content within the hysteretic loop. Only the boundary curves of the main loop are required in order to derive analytically the scanning curves. The reliability of the proposed modified model is demonstrated by a comparison of the predicted scanning curves with the measured ones. The computed results are often in more satisfactory agreement with experiments than those obtained with the use of the general Néel‐Everett model. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Water Resources Research Wiley

Modified approach to capillary hysteresis based on a similarity hypothesis

Water Resources Research, Volume 9 (5) – Oct 1, 1973

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Publisher
Wiley
Copyright
Copyright © 1973 by the American Geophysical Union.
ISSN
0043-1397
eISSN
1944-7973
D.O.I.
10.1029/WR009i005p01324
Publisher site
See Article on Publisher Site

Abstract

We present herein a simplified approach to the capillary hysteresis phenomenon. This approach is based on a similarity hypothesis resembling that of Philip (1964), but different basic assumptions lead to a quite simple and handy method of predicting the relationships between the capillary head and the water content within the hysteretic loop. Only the boundary curves of the main loop are required in order to derive analytically the scanning curves. The reliability of the proposed modified model is demonstrated by a comparison of the predicted scanning curves with the measured ones. The computed results are often in more satisfactory agreement with experiments than those obtained with the use of the general Néel‐Everett model.

Journal

Water Resources ResearchWiley

Published: Oct 1, 1973

References

  • Hysteresis in two sands and the independent domain model
    Talsma, Talsma
  • Soil water hysteresis in silt loam and clay loam soils
    Topp, Topp
  • Hysteresis during infiltration and redistribution in a soil column at different initial water contents
    Vachaud, Vachaud; Thony, Thony

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