FRACTAL DESCRIPTION OF WETTING FRONT INSTABILITY IN LAYERED SOILS

被引：23

作者：

CHANG, WL ^{[1
]}

BIGGAR, JW ^{[1
]}

NIELSEN, DR ^{[1
]}

机构：

[1] UNIV CALIF DAVIS,DEPT LAND AIR & WATER RESOURCES,DAVIS,CA 95616

来源：

WATER RESOURCES RESEARCH | 1994年 / 30卷 / 01期

关键词：

D O I：

10.1029/93WR02342

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Fractal theory was applied to describe fingering structure and to estimate the effective surface tension at the wetting front during infiltration. A scale length of mean pore size was used to estimate the microscopic system length of fingering. After bulk surface tension was replaced by effective surface tension in a linear stability theory, theoretical maximum wavelengths agreed with those of experimental results when fingering developed in quartz sand beneath Oakley sand, but not beneath Yolo clay.

引用

页码：125 / 132

页数：8

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