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Sorptivity calculation for arbitrary diffusivity (1994)

Parlange, J. -Y. ; Barry, D. A. ; Parlange, M. B. ; [et al.]

Springer

Transport in porous media 15 (1994), S. 197-208

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ISSN: 1573-1634

Keywords: Heaslet-Alksne technique ; Bruce and Klute equation ; unsaturated flow ; moments ; sorptivity

Source: Springer Online Journal Archives 1860-2000

Topics: Geosciences , Technology

Notes: Abstract An estimate of the sorptivity that requires only the knowledge of simple integrals of the soil-water diffusivity weighted by a power of the water content is present. The result is checked systematically for diffusivity functions with very different behaviours: power law, exponential and the two Fujita diffusivities. In all cases the error is always less than 1% regardless of whether or not the diffusivity increases rapidly with water content.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00613278

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