AN ANALYTICAL SOLUTION TO RICHARDS EQUATION FOR TIME-VARYING INFILTRATION

被引：57

作者：

WARRICK, AW ^{[1
]}

ISLAS, A ^{[1
]}

LOMEN, DO ^{[1
]}

机构：

[1] UNIV ARIZONA,DEPT MATH,TUCSON,AZ 85721

来源：

WATER RESOURCES RESEARCH | 1991年 / 27卷 / 05期

关键词：

D O I：

10.1029/91WR00310

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An analytical solution is developed for Richards equation for time-varying infiltration. The infiltration rates must be specified as piecewise constants with time. The answer is expressed as a sum of two terms, the first is a function of the instantaneous infiltration and the second an integral which accounts for the water distribution within the profile for the previous infiltration history. The solutions assume specific forms for the soil water diffusivity and hydraulic functions used earlier by Broadbridge and White (1988).

引用

页码：763 / 766

页数：4

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