Green-Ampt模型与Philip入渗模型的对比分析

Comparison of Green-Ampt Model With Philip Infiltration Model

土壤入渗是田间水循环的重要组成部分 ,国内外学者提出了具有不同特点和用途的入渗模型。该文通过对比分析了具有明确物理意义的 Philip入渗模型和 Green- Am pt入渗模型 ,建立了两模型参数间的内在关系 ,并利用一维垂直入渗实验资料对理论关系进行了比较。发现 Philip入渗模型对参数精度要求较高 ,而 Green-

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.