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A control volume finite element method for three‐dimensional NAPL groundwater contamination
Author(s) -
Letniowski F. W.,
Forsyth P. A.
Publication year - 1991
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1650130803
Subject(s) - groundwater , finite element method , contamination , control volume , groundwater contamination , groundwater flow , mechanics , geology , geotechnical engineering , engineering , physics , aquifer , structural engineering , ecology , biology
A three‐dimensional control volume finite element method is developed for NAPL groundwater contamination problems. Tetrahedral elements are formed by decomposing deformed blocks. The decomposition is carried out in such a way as to minimize the size of the negative transmissibilities. Negative transmissibilities produce non‐physical discrete fluid flow paths and can cause oscillatory behaviour in the Newton iteration. Example results are presented for a three‐dimensional NAPL contamination scenario using typical geophysical data.