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3D simulation of radionuclide transport in porous media
Author(s) -
Marpeau Fabien,
Saad Mazen
Publication year - 2010
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.2139
Subject(s) - radionuclide , radioactive waste , porous medium , groundwater , radiation transport , environmental science , waste management , porosity , nuclear engineering , mechanics , computer science , engineering , physics , geotechnical engineering , mathematics , nuclear physics , statistics , monte carlo method
We present an efficient and easily implementable finite volume method simulating radionuclide transport through highly heterogeneous grounds in three space dimensions. The numerical concentration of the transported chemicals are proved to remain nonnegative and stable. Then, we run a realistic test case in which some radioactive iodine I 129 particles are released from a leak in an underground nuclear waste disposal site. The question of whether the radionuclide invades the underground and reach the ground surface is investigated. Because of the 3D nature of the problem, a particular emphasis is made on the control of CPU time. Copyright © 2009 John Wiley & Sons, Ltd.