MEASUREMENT AND NUMERICAL-SIMULATION OF HYSTERETIC FLOW IN A HETEROGENEOUS POROUS-MEDIUM

被引：38

作者：

GILLHAM, RW

KLUTE, A

HEERMANN, DF

机构：

[1] COLORADO STATE UNIV, FT COLLINS, CO 80521 USA

[2] USDA SEA, FT COLLINS, CO USA

来源：

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL | 1979年 / 43卷 / 06期

关键词：

FLOW OF FLUIDS - Porous Materials - MATHEMATICAL TECHNIQUES - Finite Difference Method - SAND AND GRAVEL;

D O I：

10.2136/sssaj1979.03615995004300060001x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

A finite difference solution of the Richards equation was tested expeimentally for hysteretic flow in a nonuniform medium. The space-dependent hydraulic properties (water content-pressure head and hydraulic conductivity-water content) were determined experimentally on a laboratory column of sand and were represented in the numerical model by empirical equations. Boundary conditions resulting in hysteretic flow were applied to both the experimental column and the numerical model and the resulting water content and pressure head profiles were compared.

引用

页码：1061 / 1067

页数：7

共 20 条

[1] MECHANISM OF NATURAL GROUND-WATER RECHARGE AND DISCHARGE .2. LABORATORY COLUMN EXPERIMENTS AND FIELD MEASUREMENTS [J].