Figure 6.

Download original image
The hydraulic and electrical tortuosities τh2 and τe2versus porosity for the sintered glass beads and Fontainebleau sandstone. The meaning of the different symbols is explained in the inset, where H and E stand for hydraulic and electrical. For the sake of visibility, the Fontainebleau 2 dataset is not included in this diagram but the associated trends are comparable to the Fontainebleau 1 trends represented here.