OpenGeoSys: an open-source initiative for numerical simulation of thermo-hydro-mechanical/chemical (THM/C) processes in porous media

O. Kolditz, S. Bauer, L. Bilke, N. Bottcher, J. O. Delfs, T. Fischer, U. J. Gorke, T. Kalbacher, G. Kosakowski, C. I. Mcdermott, C. H. Park, F. Radu, K. Rink, H. Shao, H. B. Shao, F. Sun, Y. Y. Sun, A. K. Singh, J. Taron, M. WaltherW. Wang, N. Watanabe, Y. Wu, M. Xie, W. Xu, B. Zehner

Research output: Contribution to journalArticlepeer-review


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.
Original languageEnglish
Pages (from-to)589-599
Number of pages13
JournalEnvironmental Earth Sciences
Issue number2
Early online date1 Feb 2012
Publication statusPublished - 1 Sep 2012


  • Porous media
  • Thermo-hydro-mechanical/chemical
  • Open-source software
  • OpenGeoSys
  • Carbon dioxide storage


Dive into the research topics of 'OpenGeoSys: an open-source initiative for numerical simulation of thermo-hydro-mechanical/chemical (THM/C) processes in porous media'. Together they form a unique fingerprint.

Cite this