Two-dimensional small-scale infiltration tank
The 2D infiltration tank can be used to visualize the spatial and temporal characteristics of a wetting front in the unsaturated and saturated soil zone, the transport of contaminants as well as the mixing of fresh water with salt water in case of investing saltwater intrusion dynamics. The tank (L = 0.58 m; W = 0.05 m; and H = 0.44 m) is filled with soil or glass balls and has an total inner volume of 13,27 cm3. The water level inside the tank can be regulated by using two water columns connected to the tank with slotted slab. To allow good flow visualization, the tank walls are made of glass. The soil or glass balls are packed in the tank in layers of 5 cm using the dry method. Using a peristaltic pump, water can be infiltrated on the surface or by infiltration wells in the tank's center.