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Unsteady radial flow in an unconfined aquifer
Author(s) -
Streltsova T. D.
Publication year - 1972
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr008i004p01059
Subject(s) - aquifer , head (geology) , geology , hydraulic head , geotechnical engineering , groundwater flow equation , flow (mathematics) , partial differential equation , mechanics , groundwater flow , groundwater , mathematics , geomorphology , mathematical analysis , physics
The partial differential equations are deduced for unsteady radial flow to a well that is tapping an unconfined aquifer of infinite extent and discharging at a constant rate. Complete penetration of the aquifer by the well is assumed. Consideration is given to the average head, which is the observational head in a well that is screened throughout the unconfined aquifer, as well as to the head that corresponds to the free surface value. A relationship between the average head and the free surface head is assumed to be in the form of a vertical transfer linear equation.