COMSOL multiphysics, TOUGHREACT and Numerrin comparison in some modelling task of spent nuclear fuel disposal

Aku Itälä, Mika Laitinen, Merja Tanhua-Tyrkkö, Veli-Matti Pulkkanen, Markus Olin

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

    Abstract

    The bentonite barrier is an essential part of a safe spent fuel repository in granitic bedrock. In this work COMSOL Multiphysics®, TOUGHREACT and Numerrin are used and compared in modelling the saturation, cation-exchange and mass transport in compacted bentonite. Model comparison was not a straightforward task due different approaches in the model setup. Therefore, we tried to write down all the equations and via parameterisation of those equations to create model descriptions near each other.
    Original languageEnglish
    Title of host publicationCOMSOL Conference 2010 Paris
    Subtitle of host publicationUser presentations and proceedings
    PublisherCOMSOL
    Number of pages6
    ISBN (Print)978-0-9825697-7-1
    Publication statusPublished - 2010
    MoE publication typeB3 Non-refereed article in conference proceedings

    Keywords

    • bentonite
    • THM
    • model
    • numerical

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