NDLI: Simulation of Front Instabilities in Density-Driven Flow, Using a Reactive Transport Model for Biogrout Combined with a Randomly Distributed Permeability Field

Content Provider	Springer Nature Link
Author	Wijngaarden, W. K. Paassen, L. A. Vermolen, F. J. Meurs, G. A. M. Vuik, C.
Copyright Year	2016
Abstract	Biogrout is a method to strengthen granular soil, which is based on microbial-induced carbonate precipitation. To model the Biogrout process, a reactive transport model is used. Since high flow rates are undesirable for the Biogrout process, the model equations can be solved with a standard Galerkin finite element method. The Biogrout process involves the injection of dense fluids in the subsurface. In this paper, we present our reactive transport model for Biogrout and use it to simulate an experiment in which a pulse of a dense fluid is injected in a porous medium filled with water. In this experiment, front instabilities were observed in the form of fingers. The numerical simulations showed that the fingering phenomenon was less pronounced than in the experiment. By reducing the dispersion length and implementing a randomly distributed permeability field, the fingering phenomenon could be induced. Furthermore, the results of a case study to a Biogrout application are reported.
Starting Page	333
Ending Page	359
Page Count	27
File Format	PDF
ISSN	01693913
Journal	Transport in Porous Media
Volume Number	112
Issue Number	2
e-ISSN	15731634
Language	English
Publisher	Springer Netherlands
Publisher Date	2016-02-26
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biogrout Fingering Randomly distributed permeability field Microbial-induced carbonate precipitation (MICP) Numerical simulation Geotechnical Engineering & Applied Earth Sciences Industrial Chemistry/Chemical Engineering Hydrology/Water Resources Civil Engineering Hydrogeology Classical Continuum Physics
Content Type	Text
Resource Type	Article
Subject	Catalysis

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