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BEM SOLUTION FOR THE PROBLEM OF FLUX OF A MULTICOMPONENT MIXTURE OF GASES OUT OF A MULTILAYER LANDFILL
Author(s) -
POPOV V.,
POWER H.
Publication year - 1996
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/(sici)1097-0363(19960915)23:5<503::aid-fld442>3.0.co;2-z
Subject(s) - boundary element method , mechanics , porous medium , reciprocity (cultural anthropology) , boundary value problem , flow (mathematics) , domain (mathematical analysis) , convection , mathematics , simple (philosophy) , boundary (topology) , porosity , diffusion , materials science , mathematical optimization , finite element method , mathematical analysis , thermodynamics , physics , psychology , social psychology , philosophy , epistemology , composite material
A two‐dimensional numerical model for convection–diffusion flow of a multigas mixture through a multilayer porous medium was developed with the aim to be used for evaluation of emissions of gases from landfills. The proposed model is based on the boundary element–dual reciprocity method. Time‐independent one‐dimensional analytical solutions for a multilayer domain were found for the cases of a single gas and a two‐gas mixture and used to verify the accuracy of the model. Although the proposed technique is a simple one, consisting only of boundary integrals, it was found that the technique can be applied with satisfactory accuracy to the problem at which it was initially aimed.