Water table profiles and discharges for an inclined ditch-drained aquifer under temporally variable recharge

被引：8

作者：

Pauwels, VRN ^{[1
]}

Verhoest, NEC ^{[1
]}

De Troch, FP ^{[1
]}

机构：

[1] Univ Ghent, Lab Hydrol & Water Management, B-9000 Ghent, Belgium

来源：

JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING | 2003年 / 129卷 / 02期

关键词：

water table; drainage; Boussinesq equations; aquifers;

D O I：

10.1061/(ASCE)0733-9437(2003)129:2(93)

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This paper presents the solution of the linearized Boussinesq equation for an inclined, ditch-drained aquifer, with a temporally varying recharge rate. Water-table profiles and flow rates into the ditches are calculated. As an initial condition the steady-state profile for a constant recharge rate is used, and the linearized Boussinesq equation is solved for a different recharge rate. Then, at a specified time, the transient water table profile is used as initial condition for the Boussinesq equation with a new recharge rate. The transient solution at a new specified time is then used as the initial condition for the Boussinesq equation with a different recharge rate, and so on. Using the Darcy equation, analytical expressions for the flow rates into the ditches can be obtained. The Solution allows the calculation of the transient behavior of the groundwater table and its flow rates due to temporally variable recharge rates.

引用

页码：93 / 99

页数：7

共 11 条

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