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Data‐Analyses Methods for Determining Two‐Dimensional Dispersive Parameters
Author(s) -
Jiao Jiu J.
Publication year - 1993
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.1745-6584.1993.tb00828.x
Subject(s) - plume , aquifer , dispersion (optics) , transverse plane , line (geometry) , mechanics , aquifer test , slug test , porosity , geology , salt water , materials science , soil science , geotechnical engineering , mineralogy , groundwater , geometry , optics , mathematics , physics , engineering , thermodynamics , structural engineering , groundwater recharge
Abstract Two methods for calculating two‐dimensional hydrodynamic dispersion parameters by analyzing experimental data, the dispersive‐plume‐area (DPA) method and the linear‐graphic (LG) method, are proposed in this paper. The DPA method determines the dispersive parameters by analyzing the dispersive plume area after injection of a salt‐water slug into an aquifer. The transverse and longitudinal dispersivity and even the porosity of an aquifer may be derived. The LG method transforms the concentration‐time curve into a straight line. Using the slope of the line, dispersivity and velocity can be obtained. Both methods are examined using theoretical considerations and practical examples.