Comparison of Green-Ampt Model With Philip Infiltration Model

Soil water infiltration is a critical component of field water circulation, and numbers of infiltration models with different properties and functions were established. In the paper the theoretical relationship among the parameters of the Philip equation and Green-Ampt equation was analyzed, and the relations were illustrated with the experimental data of vertical one dimensional infiltration. The results show that the Philip model requires more accurate-parameters than the Green-Ampt model.