Finally after some manipulations involving statistics

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Unformatted text preview: on of lnK (degree of heterogeneity). Thus, the output of a heterogeneous problem is used as initial condition for simulating a “more heterogeneous” problem. This procedure adds an external loop to the flow solver. Mass balance errors, in terms of net discharge rate normalized by global outflow rate, did not exceed about 1%, for all simulations presented here. 5.2 Effect of heterogeneity level on mean salt wedge Fig. 2 and Fig. 3 display perspective views of simulated seawater intrusion for a highly variable permeability (σlnK = ln10 ≈ 2.30). Two surfaces are displayed in each figure : ZSALT(x,y), the salt/fresh interface level (mapped with color-coded logK values), and ZS(x,y), the freshwater piezometric surface (or hydraulic head), also mapped with the same color-coded or grey-scale logK values. On Fig. 2, one can clearly observe the sharp local gradients of the saltwater interface occuring in low permeability zones, which act as barriers to seawater (it should be kept in mind, however, that K(x,y) is the depth-averaged permeability). Fig....
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