Kinematic Wave Approach to Infiltration and Drainage into and from Soil Macropores

AN approach is presented to infiltration and drainage of one square pulse of water into and from porous media containing large pores, applying kinematic wave theory. The governing flow equation is a two-parameter power function. The approach is applied to infiltration-drainage experiments performed on a water saturated block of polyester consolidated sand containing large pores. The derivation of the two parameters of the flow equation is demonstrate