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Analytical and numerical modelling of unsaturated flow



Analytical and numerical modelling of unsaturated flow



Advances in theoretical hydrology: a tribute to James Dooge: 17-26



Analytical solutions of simplified forms of the Richards' equation are discussed. Some limiting forms of solutions that bound solutions for real soils are examined. It is shown that the solution of the Richards' equation by full linearisation provides a reasonably good approximation for infiltration when rainfall is of relatively high intensity, but results in too fast surface drainage during evaporation.

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Accession: 002301103

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