American Society of Civil Engineers


Recent Developments in Modelling THCM Behaviour of Geoenvironmental Problems


by Philip Vardon, (Research Fellow, Geoenvironmental Research Centre, Cardiff University, The Parade, Cardiff, CF24 3AA, UK. E-mail: VardonPJ@Cardiff.ac.uk) and Hywel Thomas, (Director, Geoenvironmental Research Centre, Cardiff University, The Parade, Cardiff, CF24 3AA, UK. E-mail: ThomasHR@Cardiff.ac.uk)
Section: Geotechnics, pp. 153-158, (doi:  http://dx.doi.org/10.1061/41105(378)22)

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Document type: Conference Proceeding Paper
Part of: Geoenvironmental Engineering and Geotechnics: Progress in Modeling and Applications
Abstract: As part of continuing research into the Thermo-Hydro-Chemo-Mechanical (THCM) processes in porous media, a number of recent developments, undertaken at the Geoenvironmental Research Centre (GRC) at Cardiff University, are presented in this paper. These processes are of particular importance in a number of geoenvironmental problems, for example, high-level nuclear waste repositories, landfill leachate transport and carbon dioxide sequestration. In particular, the numerical modeling of large field-scale phenomena has been undertaken, with a High Performance Computing (HPC) algorithm developed to take advantage of current computational facilities, hence allowing larger and more detailed models to be undertaken in realistic timescales; a geochemical model has been included into the multi-species reactive transport THCM model. In addition, a first attempt to include biological reactions has been made. These developments are placed within the context of increasing overall understanding, building predictive capacity and impact upon assessing the overall system performance.


ASCE Subject Headings:
Geotechnical engineering
Porous media
Chemical properties
Biological processes