TOUGH3-FLAC3D: a modeling approach for parallel computing of fluid flow and geomechanics

The recent development of the TOUGH3 code allows for a faster and more reliable fluid flow simulator. At the same time, new versions of FLAC3D are released periodically, allowing for new features and faster execution. In this paper, we present the first implementation of the coupling between TOUGH3...

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Bibliographic Details
Published in:Computational geosciences 2022-12, Vol.26 (6), p.1563-1580
Main Authors: Rinaldi, Antonio P., Rutqvist, Jonny, Luu, Keurfon, Blanco-Martín, Laura, Hu, Mengsu, Sentís, Manuel L., Eberle, Leandra, Kaestli, Philipp
Format: Article
Language:English
Subjects:
Carbon dioxide
Carbon dioxide fixation
Case studies
Codes
Computer Science
Coupled simulator
Earth and Environmental Science
Earth Sciences
Energy
Engineering Sciences
Exact solutions
FLAC3D
Fluid dynamics
Fluid flow
Geomechanics
GEOSCIENCES
Geotechnical Engineering & Applied Earth Sciences
Hydrogeology
Mathematical Modeling and Industrial Mathematics
MATHEMATICS AND COMPUTING
Original Paper
Parallel computing
Permeability
Radioactive waste disposal
Radioactive wastes
Simulation
Simulators
Soil Science & Conservation
THM processes
TOUGH3
Waste disposal
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Summary:The recent development of the TOUGH3 code allows for a faster and more reliable fluid flow simulator. At the same time, new versions of FLAC3D are released periodically, allowing for new features and faster execution. In this paper, we present the first implementation of the coupling between TOUGH3 and FLAC3Dv6/7, maintaining parallel computing capabilities for the coupled fluid flow and geomechanical codes. We compare the newly developed version with analytical solutions and with the previous approach, and provide some performance analysis on different meshes and varying the number of running processors. Finally, we present two case studies related to fault reactivation during CO 2 sequestration and nuclear waste disposal. The use of parallel computing allows for meshes with a larger number of elements, and hence more detailed understanding of thermo-hydro-mechanical processes occurring at depth.
ISSN:1420-0597
1573-1499
DOI:10.1007/s10596-022-10176-0