Evaluting the General Well Function

by Otto J. Helweg, King Faisal Univ, Al-Ahsa, Saudi Arabia,
Ahmed M. El-Khashab, King Faisal Univ, Al-Ahsa, Saudi Arabia,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


The closest thing to a mathematical function that maps well discharge to drawdown has been Jacob's equation, caled the step-drawdown equation. However, this equation assumes the drawdown to be only a function of discharge when it is also a function of time. The senior author has suggested a more general multivariate function but there are several forms this could take. This paper examines two of these forms and evaluates them with actual data using split sampling.

Subject Headings: Drawdown (hydrology) | Water discharge | Pumping tests | Mathematical models | Pumps | Hydrology | Mathematics

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