NUMERICAL SIMULATION OF THE IMPACT OF WATER-AIR FRONTS ON RADIONUCLIDE PLUMES IN HETEROGENEOUS MEDIA

Authors

  • J. Aquino Universidade do Estado do Rio de Janeiro
  • A. S. Francisco Universidade do Estado do Rio de Janeiro
  • F. Pereira Universidade do Estado do Rio de Janeiro
  • H. P. Amaral Souto Universidade do Estado do Rio de Janeiro

DOI:

https://doi.org/10.5380/reterm.v5i1.61659

Keywords:

central difference scheme, Modified Method of Characteristics, mixed finite element method, radionuclide contamination, unsaturated porous media

Abstract

The goal of this paper is to investigate the interaction of water-air fronts with radionuclide plumes in unsaturated heterogeneous porous media. This problem is modeled by a system of equations that describes both water-air flow and radionuclide transport. The water-air flow problem is solved numerically by a mixed finite element combined with a non-oscillatory central difference scheme. For the radionuclide transport equation we use the Modified Method of Characteristics (MMOC).We present results of numerical simulations for heterogeneous permeability fields taking into account sorption effects.

Author Biographies

J. Aquino, Universidade do Estado do Rio de Janeiro

Departamento de Modelagem Computacional Instituto Politécnico

A. S. Francisco, Universidade do Estado do Rio de Janeiro

Departamento de Modelagem Computacional Instituto Politécnico

F. Pereira, Universidade do Estado do Rio de Janeiro

Departamento de Modelagem Computacional Instituto Politécnico

H. P. Amaral Souto, Universidade do Estado do Rio de Janeiro

Departamento de Modelagem Computacional Instituto Politécnico

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Published

2006-07-31

How to Cite

Aquino, J., Francisco, A. S., Pereira, F., & Amaral Souto, H. P. (2006). NUMERICAL SIMULATION OF THE IMPACT OF WATER-AIR FRONTS ON RADIONUCLIDE PLUMES IN HETEROGENEOUS MEDIA. Revista De Engenharia Térmica, 5(1), 46–53. https://doi.org/10.5380/reterm.v5i1.61659

Issue

Section

Ciência/Science