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This article in SSSAJ

  1. Vol. 51 No. 3, p. 557-562
    Received: Jan 30, 1986

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Water Movement in a Finite Layer: Absorption for Constant Water Content at the Surfaces1

  1. U. Hornung,
  2. J.-Y. Parlange,
  3. W.L. Hogarth,
  4. L.D. Connell and
  5. R. Peters2



An accurate, analytical formulation describes very simply the outflow of water from a soil layer when the potentials (water contents) are maintained constant at both surfaces. The analytical formulation is adapted from a previously developed approach to the present problem. The accuracy of the results is checked by comparison with a precise numerical simulation which is greatly simplified for a Brooks and Corey type diffusivity. It is suggested that a laboratory experiment using this configuration would yield the soil properties relevant for adsorption.

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