2004 Volume 48 Pages 319-324
To understand the influence of heterogeneity on rainfall infiltration and seepage, the governing equations of twophase flow through porous medium are employed and the finite element formulation is carried out. And 1/f-ζmodel is introduced as the geostatistical model of hydraulic conductivity. It was shown that when ground surface was under the ponded condition, surface water reached water table faster because of heterogeneity. However, when ground surface was in non-ponded condition, the influence of heterogeneity depended on analysis scale. Moreover, distribution of pore water pressure was highly related to distribution of saturated hydraulic conductivity of ground surface.
