Three-dimensional Seepage Analysis of Sand

We consider a simple geometrical model of sand in the micro-domain as shown in Fig. 8.15, and apply the HA. 

Several empirical formulae were proposed for sand, which are given as follows  

In Fig. 8.17 we show the HA-calculated results ( ) using the regression formula with a viscosity rj = 1.14 x 10 Pa-s (water at T = 15°C). A comparison with Fig. 8.16 indicates that both are reconcilable. 

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