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COMPUTING DRAWDOWN DISTRIBUTIONS USING MICROCOMPUTERS
Author(s) -
King James M.
Publication year - 1984
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.1745-6584.1984.tb01447.x
Subject(s) - discretization , computer science , exponential function , simple (philosophy) , drawdown (hydrology) , trigonometry , ideal (ethics) , computational science , mathematics , field (mathematics) , flow (mathematics) , algorithm , mathematical optimization , geology , mathematical analysis , geotechnical engineering , geometry , aquifer , philosophy , epistemology , pure mathematics , groundwater
. Using known or estimated values of trans‐missivity and storativity, the distribution of drawdowns at any time within a discretized flow field can be generated by applying simple trigonometry and numerical approximations of the exponential integral to the Theis equation. Single‐ and multiple‐well systems, as well as image boundaries, are readily simulated with this method. A program employing this technique is presented in BASIC for use with microcomputers. The availability, low cost, and computational power of many small computers makes them ideal for this type of application. Their user‐oriented features allow many possible combinations of wells, boundaries, and hydraulic properties to be analyzed in a short time.