A simple solution to tunnel or well discharge under constant drawdown

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A simple solution to tunnel or well discharge under constant drawdown

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 w...

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ژورنال

عنوان ژورنال: Hydrogeology Journal

سال: 2004

ISSN: 1431-2174,1435-0157

DOI: 10.1007/s10040-004-0355-z