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Category Text Publication
Reference Category Journals
DOI 10.1007/s10596-010-9213-3
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Title (Primary) Mixed finite element discretization and Newton iteration for a reactive contaminant transport model with nonequilibrium sorption: convergence analysis and error estimates
Author Radu, F.A.; Pop, I.S.
Source Titel Computational Geosciences
Year 2011
Department ENVINF
Volume 15
Issue 3
Page From 431
Page To 450
Language englisch
Keywords Reactive transport with sorption; Flow in porous media; Numerical simulations; Error estimates; Mixed finite elements; Newton method
Abstract

We present a numerical scheme for reactive contaminant transport with nonequilibrium sorption in porous media. The mass conservative scheme is based on Euler implicit, mixed finite elements, and Newton method. We consider the case of a Freundlich-type sorption. In this case, the sorption isotherm is not Lipschitz but just Hölder continuous. To deal with this, we perform a regularization step. The convergence of the scheme is analyzed. An explicit order of convergence depending only on the regularization parameter, the time step, and the mesh size is derived. We give also a sufficient condition for the quadratic convergence of the Newton method. Finally, relevant numerical results are presented. 

Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=11179
Radu, F.A., Pop, I.S. (2011):
Mixed finite element discretization and Newton iteration for a reactive contaminant transport model with nonequilibrium sorption: convergence analysis and error estimates
Comput. Geosci. 15 (3), 431 - 450 10.1007/s10596-010-9213-3