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A finite element study of steady state flow in an unconfined aquifer resting on a sloping bed
Author(s) -
Choi E. C. C.
Publication year - 1978
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/wr014i003p00391
Subject(s) - geotechnical engineering , finite element method , geology , flow (mathematics) , aquifer , steady state (chemistry) , magnitude (astronomy) , mechanics , groundwater , engineering , structural engineering , physics , chemistry , astronomy
A two‐dimensional finite element method is used to study the problem of seepage over a sloping impermeable bed. Flow profile and seepage rates obtained from the analysis are compared with those solved from Pavlovsky's and Childs' equations. The latter equation is found to be more favorable, especially for large slopes. The effects on the flow profile due to (1) a change in the upstream and downstream conditions and (2) a sudden change in the magnitude of the slope of the impermeable bed are also investigated.