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Rapid Solution of the Nonlinear Step‐Drawdown Equation
Author(s) -
Miller Cass T.,
Weber Walter J.
Publication year - 1983
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/j.1745-6584.1983.tb00765.x
Subject(s) - drawdown (hydrology) , nonlinear system , limiting , mathematics , mathematical optimization , computer science , engineering , geotechnical engineering , physics , groundwater , aquifer , mechanical engineering , quantum mechanics
The step‐drawdown test is frequently utilized by hydrogeologists as an aid in assessing well efficiency and approximate pumping capacity. Unfortunately, the analysis of step‐drawdown data presently requires either a solution to a system of highly nonlinear equations or the application of tenuous assumptions relative to the solution form. A method for solution is derived which does not require limiting assumptions, type‐curve methods or extensive computer facilities.