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Where Do Periodic Variations in the Discharge of a Well Become Negligible?
Author(s) -
Bakker Mark
Publication year - 2005
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.1745-6584.2005.00159.x
Subject(s) - rule of thumb , aquifer , flow (mathematics) , environmental science , transient (computer programming) , hydrology (agriculture) , transient flow , irrigation , mechanics , geology , groundwater , mathematics , geotechnical engineering , surge , computer science , geomorphology , physics , algorithm , operating system , ecology , biology
A rule of thumb is presented to determine where variations in the discharge of a pumping well have a significant influence on the flow in an aquifer. The rule of thumb relates the period of the variation of the discharge to the distance from the well beyond which the transient effect on the flow in the aquifer is insignificant. For example, when an irrigation well pumps intermittently during the growing season, the rule may be applied to determine the distance from the well beyond which flow in the aquifer can be simulated with an average discharge during the growing season; the distance from the well beyond which flow can be simulated with a steady, yearly averaged discharge can also be computed.