Psuedokinetics arising from the upscaling of equilibrium

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XVI International Conference on Computational Methods in Water Resources (CMWR-XVI) Ingeniørhuset

Psuedokinetics arising from the upscaling of equilibrium
Author:Philip Binning <> (Technical University of Denmark)
Michael Celia <> (Princeton University)
Li Li <> (Princeton University)
Presenter:Philip Binning <> (Technical University of Denmark)
Date: 2006-06-18     Track: Special Sessions     Session: Multi-Disciplinary Approaches To Reactive Transport Simulation In Aquifer Systems

Multicomponent contaminant transport models in groundwater are typically based on assumptions of local geochemical equilibrium on the grid scale. In heterogenous systems there may be significant coupling between transport processes and geochemical equilibrium at smaller than grid block scale. When these processes are upscaled to grid scale, geochemical evolution may take on a kinetic character. We have termed this upscaled kinetic behaviour as “pseudo-kinetics” and illustrate it through some examples at the pore and aquifer scales.