Comparison between global and operator splitting approaches for modeling multicomponent reactive transport in porous media

Marwan Fahs, Jérôme Carrayrou, Anis Younes, Ackerer Philippe & Marwan Fahs
Multicomponent reactive transport with chemical equilibrium reactions, involving advective and dispersive solute transport coupled with the nonlinear reaction, is fundamental feature of subsurface environments. At the equilibrium, the governing system of equations is formed by the partial differential equations (PDEs) of the transport operator and the nonlinear algebraic equations (AEs) describing the chemical reactions. These two sets of equations are coupled and needed to be solved using the operator splitting (OS) approach or the global...
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