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In the following report the authors experimentally and numerically study one-and two-dimensional transient flows where the hysteresis of the relationship of suction-water content clearly appears. In the numerical simulation of these flows, by using a finite element method, the hysteresis effect is taken into account by corlsidering both its primary and secondary scanning curves; when the seepage surface occurs, it too is taken into account. The comparison with experimental results shows that in the concerned problems a numerical simulation in which this hysteresis effect is ignored may involve important errors.

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