OpenGeoSys: an open-source initiative for numerical simulation of thermo-hydro-mechanical/chemical (THM/C) processes in porous media. In this paper we describe the OpenGeoSys (OGS) project, which is a scientific open-source initiative for numerical simulation of thermo-hydro-mechanical-chemical processes in porous media. The basic concept is to provide a flexible numerical framework (using primarily the Finite Element Method (FEM)) for solving multifield problems in porous and fractured media for applications in geoscience and hydrology. To this purpose OGS is based on an object-oriented FEM concept including a broad spectrum of interfaces for pre- and postprocessing. The OGS idea has been in development since the mid-eighties. We provide a short historical note about the continuous process of concept and software development having evolved through Fortran, C, and C++ implementations. The idea behind OGS is to provide an open platform to the community, outfitted with professional software-engineering tools such as platform-independent compiling and automated benchmarking. A comprehensive benchmarking book has been prepared for publication. Benchmarking has been proven to be a valuable tool for cooperation between different developer teams, for example, for code comparison and validation purposes (DEVOVALEX and CO2 BENCH projects). On one hand, object-orientation (OO) provides a suitable framework for distributed code development; however, the parallelization of OO codes still lacks efficiency. High-performance-computing efficiency of OO codes is subject to future research.

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  1. Cui, Xin; Wong, Louis Ngai Yuen: A 3D fully thermo-hydro-mechanical coupling model for saturated poroelastic medium (2022)
  2. Kyas, Svetlana; Volpatto, Diego; Saar, Martin O.; Leal, Allan M. M.: Accelerated reactive transport simulations in heterogeneous porous media using Reaktoro and Firedrake (2022)
  3. Maximilian Bittens: VTUFileHandler: A VTU library in the Julia language that implements an algebra for basic mathematical operations on VTU data (2022) not zbMATH
  4. Águila, Jesús F.; Montoya, Vanessa; Samper, Javier; Montenegro, Luis; Kosakowski, Georg; Krejci, Philipp; Pfingsten, Wilfried: Modeling cesium migration through Opalinus clay: a benchmark for single- and multi-species sorption-diffusion models (2021)
  5. Buchwald, J., Kolditz, O., Nagel, T: ogs6py and VTUinterface: streamlining OpenGeoSys workflows in Python (2021) not zbMATH
  6. Koch, Timo; Gläser, Dennis; Weishaupt, Kilian; Ackermann, Sina; Beck, Martin; Becker, Beatrix; Burbulla, Samuel; Class, Holger; Coltman, Edward; Emmert, Simon; Fetzer, Thomas; Grüninger, Christoph; Heck, Katharina; Hommel, Johannes; Kurz, Theresa; Lipp, Melanie; Mohammadi, Farid; Scherrer, Samuel; Schneider, Martin; Seitz, Gabriele; Stadler, Leopold; Utz, Martin; Weinhardt, Felix; Flemisch, Bernd: DuMu(^\textx 3) -- an open-source simulator for solving flow and transport problems in porous media with a focus on model coupling (2021)
  7. Poonoosamy, J.; Wanner, C.; Alt Epping, P.; Águila, J. F.; Samper, J.; Montenegro, L.; Xie, M.; Su, D.; Mayer, K. U.; Mäder, U.; van Loon, L. R.; Kosakowski, G.: Benchmarking of reactive transport codes for 2D simulations with mineral dissolution-precipitation reactions and feedback on transport parameters (2021)
  8. Su, Danyang; Mayer, K. Ulrich; MacQuarrie, Kerry T. B.: MIN3P-HPC: a high-performance unstructured grid code for subsurface flow and reactive transport simulation (2021)
  9. Suh, Hyoung Suk; Sun, WaiChing: Asynchronous phase field fracture model for porous media with thermally non-equilibrated constituents (2021)
  10. Benisch, Katharina; Wang, Wenqing; Delfs, Jens-Olaf; Bauer, Sebastian: The OGS-Eclipse code for simulation of coupled multiphase flow and geomechanical processes in the subsurface (2020)
  11. Caulk, Robert; Scholtès, Luc; Krzaczek, Marek; Chareyre, Bruno: A pore-scale thermo-hydro-mechanical model for particulate systems (2020)
  12. Damiani, Leonardo Hax; Kosakowski, Georg; Glaus, Martin A.; Churakov, Sergey V.: A framework for reactive transport modeling using FEniCS-Reaktoro: governing equations and benchmarking results (2020)
  13. Grunwald, Norbert; Maßmann, Jobst; Kolditz, Olaf; Nagel, Thomas: Non-iterative phase-equilibrium model of the (\textH_2\textO)-(\textCO_2)-NaCl-system for large-scale numerical simulations (2020)
  14. Timo Koch, Dennis Gläser, Kilian Weishaupt, Sina Ackermann, Martin Beck, Beatrix Becker, Samuel Burbulla, Holger Class, Edward Coltman, Simon Emmert, Thomas Fetzer, Christoph Grüninger, Katharina Heck, Johannes Hommel, Theresa Kurz, Melanie Lipp, Farid Mohammadi, Samuel Scherrer, Martin Schneider, Gabriele Seitz, Leopold Stadler, Martin Utz, Felix Weinhardt, Bernd Flemisch: DuMuX 3 -- an open-source simulator for solving flow and transport problems in porous media with a focus on model coupling (2019) arXiv
  15. Yoshioka, Keita; Parisio, Francesco; Naumov, Dmitri; Lu, Renchao; Kolditz, Olaf; Nagel, Thomas: Comparative verification of discrete and smeared numerical approaches for the simulation of hydraulic fracturing (2019)
  16. Garipov, T. T.; Tomin, P.; Rin, R.; Voskov, D. V.; Tchelepi, H. A.: Unified thermo-compositional-mechanical framework for reservoir simulation (2018)
  17. E. Keilegavlen, A. Fumagalli, R. Berge, I. Stefansson, I. Berre: PorePy: An Open-Source Simulation Tool for Flow and Transport in Deformable Fractured Rocks (2017) arXiv
  18. He, Wenkui; Shao, Haibing; Kolditz, Olaf; Wang, Wenqing; Kalbacher, Thomas: Comments on “A mass-conservative switching algorithm for modeling fluid flow in variably saturated porous media” (2015)
  19. Horgue, P.; Soulaine, C.; Franc, J.; Guibert, R.; Debenest, G.: An open-source toolbox for multiphase flow in porous media (2015)
  20. Steefel, C. I.; Appelo, C. A. J.; Arora, B.; Jacques, D.; Kalbacher, T.; Kolditz, O.; Lagneau, V.; Lichtner, P. C.; Mayer, K. U.; Meeussen, J. C. L.; Molins, S.; Moulton, D.; Shao, H.; Šimůnek, J.; Spycher, N.; Yabusaki, S. B.; Yeh, G. T.: Reactive transport codes for subsurface environmental simulation (2015)

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