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Solutions of hydrodynamic dispersion in porous media
Author(s) -
Eldor Menahem,
Dagan Gedeon
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/wr008i005p01316
Subject(s) - tracer , porous medium , dispersion (optics) , mechanics , porosity , flow (mathematics) , materials science , leaching (pedology) , geotechnical engineering , soil science , hydrology (agriculture) , environmental science , soil water , geology , physics , optics , nuclear physics
Problems of hydrodynamic dispersion in porous media with radioactive decay and/or adsorption of the tracer are solved by an approximate analytical method. The flow of the carrier fluid is assumed to be steady and two dimensional. Initially a sharp front separates two regions of different constant tracer concentrations. The general solution is applied to a few examples of hydrologic interest: radial flow from a recharging well, a recharging well in a uniform flow field, two wells, and soil leaching by uniform recharge.