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Contaminant transport under variable density flow in fractured porous media
Author(s) -
Valliappan S.,
Wang W.,
Khalili N.
Publication year - 1998
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/(sici)1096-9853(199807)22:7<575::aid-nag928>3.0.co;2-x
Subject(s) - porous medium , porosity , geotechnical engineering , fracture (geology) , flow (mathematics) , mechanics , dispersion (optics) , materials science , geology , petroleum engineering , environmental science , physics , optics
A numerical model for simulating flow and transport of contaminants with variable density in fractured porous media is presented. The non‐linearities arising from the density variation and the velocty‐dependent dispersion terms have been handled by Picard method. It is shown that the contaminant transport in a fractured porous medium is initially dominated by fractures. However, with time increasing, the contaminant concentration in porous blocks increases, due to the leakage of contaminant from the fracture network to the porous blocks. It is also shown that the high density of contaminant has a greater effect on its transport in the fracture network than in the porous blocks. © 1998 John Wiley & Sons, Ltd.