Numerical Simulation of Freshwater, Salt Water and Methane Interaction Processes in a Coastal Aquifer


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esauter [ at ] awi-bremerhaven.de

Abstract

A two-phase (water, gas)/three-component (water, salt, methane) model concept for flow and transport processes in a porous medium was developed. It accounts for density-driven flow as well as for mass transfer between the phases.Flow and transport processes around submarine groundwater springs were investigated with special emphasis on occuring gas bubbles. In the range of estimated parameters a reasonable agreement between simulations and measurements was obtained. Gas bubbles are probably caused by locally increased methane production or small-scale heterogenities. In the future, the model concept can be further developed to simulate non-isothermal multiphase/multicomponent processes, e.g., at gas hydrates.



Item Type
Inbook
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Peer-reviewed
Publication Status
Published
Eprint ID
5821
Cite as
Hinkelmann, R. , Sheta, H. , Class, H. , Sauter, E. , Helmig, R. and Schlüter, M. (2002): Numerical Simulation of Freshwater, Salt Water and Methane Interaction Processes in a Coastal Aquifer , Chadam, J., Cunningham, A., Ewing, R.E., Ortoleva, P., Fanett Wheeler, M. (eds.) IMA volumes in mathematics and its applications: Resource Recovery, Confinement, and Remediation of Environmental Hazards, 131, 263-281, Springer, ISBN: 0-387-95506-2 .


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