One last visit to the capillarity correction for free surface flow

被引:4
作者
Fink, JP [1 ]
Parlange, JY
El-Kadi, AI
机构
[1] Gettysburg Coll, Dept Math & Comp Sci, Gettysburg, PA 17325 USA
[2] Cornell Univ, Dept Agr & Biol Engn, Ithaca, NY 14853 USA
[3] Univ Hawaii Manoa, Dept Geol & Geophys, Honolulu, HI 96822 USA
[4] Univ Hawaii Manoa, Water Resources Res Ctr, Honolulu, HI 96822 USA
关键词
D O I
10.1029/2000WR900318
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
When a capillarity correction is incorporated into the diffusion equation to describe the sudden drawdown of a water table, the resulting differential equation preserves, instead of smoothes, irregularities in the initial data. We describe how this problem can be handled by a proper and careful interpretation of the initial conditions, explain why it works, and illustrate the resulting behavior with numerical experiments.
引用
收藏
页码:827 / 829
页数:3
相关论文
共 3 条
[1]   CURIOUS BEHAVIOR OF A GROUNDWATER-FLOW MODEL [J].
FINK, JP .
WATER RESOURCES RESEARCH, 1990, 26 (08) :1833-1836
[2]   A CAPILLARITY CORRECTION FOR FREE-SURFACE FLOW OF GROUNDWATER [J].
PARLANGE, JY ;
BRUTSAERT, W .
WATER RESOURCES RESEARCH, 1987, 23 (05) :805-808
[3]  
PARLANGE JY, 1990, WATER RESOUR RES, V26, P1691