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Hybrid Methods in Engineering

ISSN Print: 1099-2391
ISSN Online: 2641-7359

Archives: Volume 1, 1999 to Volume 4, 2002

Hybrid Methods in Engineering

DOI: 10.1615/HybMethEng.v3.i2-3.20
15 pages

A HYBRID SOLUTION FOR SIMULATION OF 2-D CONTAMINANT TRANSPORT IN HETEROGENEOUS SUBSURFACE SYSTEMS

Marco A. Leal
Laboratório de Transmissão e Tecnologia do Calor - LTTC, Mechanical Engineering Dept. - Universidade Federal do Rio de Janeiro, EE/COPPE/UFRJ, Cidade Universitária - Cx. Postal 68503 - Rio de Janeiro - RJ - 21945.970 - Brazil
Nerbe J. Ruperti, Jr.
Brazilian Nuclear Energy Commission, Waste Management Department, COREJ/CNEN, Rua General Severiano 90-22294-900 Botafogo, Rio de Janeiro RJ, Brazil

ABSTRACT

The generalized integral transform technique (GITT) is employed to simulate the two-dimensional contaminant transport in a multilayer subsurface system. Two layers are considered. In the first one the unsaturated zone is treated as a saturated soil; the second layer is supposed to be a groundwater pathway. The flow field is taken as known. The concentration source is assumed to be located at the top of the system, and two types of boundary conditions are investigated: constant- and time-dependent flux injection. The 2-D hybrid numerical-analytical proposed solution obtained through GITT is graphically presented.


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