A simple solution to tunnel or well discharge under constant drawdown

被引：2

作者：

Pierre Perrochet

机构：

[1] University of Neuchâtel,Centre of Hydrogeology

来源：

Hydrogeology Journal | 2005年 / 13卷

关键词：

Well hydraulics; Tunnel discharge;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A simple analytical formula is developed to calculate transient discharge inflow rates into a tunnel or a well under constant drawdown. The agreement with the classical, but cumbersome diffusion-equation-based solution of Jacob and Lohman is excellent throughout the range of dimensionless times. By using only a straightforward logarithmic function, this explicit solution may therefore be used with great computational benefits in practice, and also when further mathematical manipulations such as differentiation or integration are required.

引用

页码：886 / 888

页数：2