The Riemann Solution for the Injection of Steam and Nitrogen in a Porous Medium

Journal article (2009)
Department
Geotechnology (CEG) (TU Delft)
Copyright: © 2009 Springer Science+Business Media B.V.
DOI: https://doi.org/doi:10.1007/s11242-009-9419-9
Riemann problem Multiphase flow Bifurcation Hyperbolic systems Steam injection
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Published Date

09-06-2009

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Source:

Transport in Porous Media, 81 (3), 2010

ISSN:

1573-1634

Faculty

Civil Engineering and Geosciences

Department

Geotechnology

Abstract

We solve the model for the flow of nitrogen, vapor, and water in a porous medium, neglecting compressibility, heat conductivity, and capillary effects. Our choice of injection conditions is determined by the application to clean up polluted sites. We study all mathematical structures, such as rarefaction, shock waves, and their bifurcations; we also develop a systematic method to find fundamental solutions for thermal compositional flows in porous media. In addition, we unexpectedly find a rarefaction evaporation wave which has not been previously reported in any other study.

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