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Richards Flow

  • Thomas KalbacherEmail author
  • Xi Chen
  • Ying Dai
  • Jürgen Hesser
  • Xuerui Wang
  • Wenqing Wang
Chapter
Part of the Terrestrial Environmental Sciences book series (TERENVSC)

Abstract

Introduced by Richards [1], the Richards’ equation is used to mathematically describe water movement in the unsaturated zone. Theoretically, the equation is also a sort of simplification of the two-phase flow equations of water-air processes in porous media under the constant gas pressure condition.

Keywords

Pore Pressure Water Pressure Capillary Pressure Water Saturation Relative Permeability 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    L.A. Richards. Capillary conduction of liquids through porous mediums. Physics A-J Gen. Appl. Phys., 1(1):318–333, 1931.Google Scholar
  2. 2.
    M.T. VanGenuchten and P.J. Wierenga. Mass-transfer studies in sorbing porous-media. 1. Analytical solutions. Soil Sci. Soc. Am. J., 40(4):473–480, 1976.Google Scholar
  3. 3.
    Y. Mualem. New model for predicting hydraulic conductivity of unsaturated porous-media. Water Resour. Res., 12(3):513–522, 1976.Google Scholar
  4. 4.
    J.K. Zhou. Differential transformation and its applications for electrical circuits. Huazhong University Press, 1986.Google Scholar
  5. 5.
    W.V. Abeele M.L. Wheeler and B.W. Burton. Geohydrology of bandelier tuff. Los Alamos National Laboratory report, LA-8962-MS, 1981.Google Scholar
  6. 6.
    H. S. Carslaw and J. C. Jaeger. Conduction of heat in solids. Oxford University Press, London, 2nd edition, 1959.Google Scholar

Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Thomas Kalbacher
    • 1
    Email author
  • Xi Chen
    • 1
  • Ying Dai
    • 1
  • Jürgen Hesser
    • 1
  • Xuerui Wang
    • 1
  • Wenqing Wang
    • 1
  1. 1.Helmholtz Centre for Environmental Research UFZLeipzigGermany

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