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REVIEW article

Front. Nucl. Eng.
Sec. Radioactive Waste Management
Volume 3 - 2024 | doi: 10.3389/fnuen.2024.1437714
This article is part of the Research Topic EURAD: State of the Art in Research and Development on Radioactive Waste Management and Disposal View all 4 articles

Development and Improvement of Numerical methods and Tools for Modelling Coupled Processes -State-of-the-Art

Provisionally accepted
Francis Claret Francis Claret 1*Nikolaos Prasianakis Nikolaos Prasianakis 2A Baksay A Baksay 3D Lukin D Lukin 4G Pepin G Pepin 5E Ahusborde E Ahusborde 6B Amaziane B Amaziane 6G. Bator G. Bator 7D. Becker D. Becker 8A. Bednár A. Bednár 7M. Béreš M. Béreš 9S. Bérešová S. Bérešová 9Z Böthi Z Böthi 3Vinzenz Brendler Vinzenz Brendler 10K Brenner K Brenner 11J. Březina J. Březina 12F. Chave F. Chave 11Sergey Churakov Sergey Churakov 2M Hokr M Hokr 12D Horák D Horák 9D Jacques D Jacques 13F Jankovský F Jankovský 14C Kazymyrenko C Kazymyrenko 15T Koudelka T Koudelka 16T Kovács T Kovács 7T Krejčí T Krejčí 17J Kruis J Kruis 17E Laloy E Laloy 13J Landa J Landa 12T Ligurský T Ligurský 9T Lipping T Lipping 18C. López-Vázquez C. López-Vázquez 19R Masson R Masson 11J.C.L. Meeussen J.C.L. Meeussen 20M Mollaali M Mollaali 10,21A Mon A Mon 22L. Montenegro L. Montenegro 22V Pisani V Pisani 22Jenna Poonoosamy Jenna Poonoosamy 23S.I Pospiech S.I Pospiech 21Z. Saâdi Z. Saâdi 24J Samper J Samper 22A-C Samper-Pilar A-C Samper-Pilar 22G. Scaringi G. Scaringi 16S Sysala S Sysala 9K. Yoshioka K. Yoshioka 25Y. Yuankai Y. Yuankai 23M. Zuna M. Zuna 14Olaf Kolditz Olaf Kolditz 25
  • 1 Bureau de Recherches Géologiques et Minières, Orléans, France
  • 2 Paul Scherrer Institut (PSI), Villigen, Switzerland
  • 3 TS Enercon, Budapest, Hungary
  • 4 Radioactive Waste Repository Authority, Prague, Prague, Czechia
  • 5 Agence Nationale Pour la Gestion des Déchets Radioactifs, Châtenay-Malabry, Île-de-France, France
  • 6 Université de Pau et des Pays de l'Adour, Pau, France
  • 7 Social Organization for Radioecological Cleanliness, Veszprem, Hungary
  • 8 GRS gGmbH, Braunschweig, Germany
  • 9 Institute of Geonics (ASCR), Ostrava, Czechia
  • 10 Helmholtz Institute Freiberg for Resource Technology, Helmholtz Center Dresden-Rossendorf, Helmholtz Association of German Research Centres (HZ), Freiberg, Lower Saxony, Germany
  • 11 Université Côte d'Azur, Nice, Provence-Alpes-Côte d'Azur, France
  • 12 Technical University of Liberec, Liberec, Liberec, Czechia
  • 13 Belgian Nuclear Research Centre (SCK CEN), Mol, Belgium
  • 14 ÚJV Řež, a. s., Husinec, Czechia
  • 15 Electricité de France (France), Paris, France
  • 16 Charles University, Prague, Prague, Czechia
  • 17 Faculty of Mechanical Engineering, Czech Technical University in Prague, Prague, Prague, Czechia
  • 18 Tampere University, Tampere, Pirkanmaa, Finland
  • 19 ORT Uruguay, Montevideo, Uruguay
  • 20 Nuclear Research and Consultancy Group, Schagen, Netherlands
  • 21 Helmholtz Center Dresden-Rossendorf, Helmholtz Association of German Research Centres (HZ), Dresden, Lower Saxony, Germany
  • 22 University of A Coruña, A Coruña, Spain
  • 23 Institute of Energy and Climate Research, Julich Research Center, Helmholtz Association of German Research Centres (HZ), Jülich, North Rhine-Westphalia, Germany
  • 24 Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France
  • 25 Centre for Environmental Biotechnology, Helmholtz Centre for Environmental Research, Helmholtz Association of German Research Centres (HZ), Leipzig, Lower Saxony, Germany

The final, formatted version of the article will be published soon.

    The Strategic Research Agenda (SRA; https://www.ejp-eurad.eu/publications/eurad-sra) of the European Joint Programme on Radioactive Waste Management (EURAD; https://www.ejpeurad.eu/) describes the scientific and technical domains and sub-domains and knowledge management needs of common interest between EURAD participant organizations.Theme number 7 is entitled "Performance assessment, safety case development and safety analyses".A list of research and development priorities and activities of common interest to be addressed within EURAD for theme 7 have been established. Amongst others, the Understanding and modelling of multi-physical Thermo-Hydro-Mechanical-Chemical coupled processes (THMC) occurring in radioactive waste disposal is a major and permanent issue to support optimization of design and safety case abstraction. To tackle this challenge a research work package entitled "DONUT : Development and improvement of numerical methods and tools for modelling coupled processes" has been conducted within the EURAD join programming initiative. The purpose of this work package is to improve/develop methods or numerical tools in order to go a step further in development of (i) relevant, performant and cutting-edge numerical methods that can easily be implemented in existing or new tools, in order to carry out high-performance computing to facilitate the study of highly coupled processes in large systems, (ii) numerical scale transition schemes for coupled processes, (iii) innovative numerical methods to carry out uncertainty and sensitivity analyses. In this paper the work carried out within the DONUT work package is put in perspective regarding the existing concept and literature on the field. It does not pretend to be exhaustive but rather to put emphasis on particular issues tackled during the project.

    Keywords: Numerical tools, Numerical methods, upscaling, Uncertainties treatment, machine learning, coupled processes, reactive transport

    Received: 24 May 2024; Accepted: 08 Aug 2024.

    Copyright: © 2024 Claret, Prasianakis, Baksay, Lukin, Pepin, Ahusborde, Amaziane, Bator, Becker, Bednár, Béreš, Bérešová, Böthi, Brendler, Brenner, Březina, Chave, Churakov, Hokr, Horák, Jacques, Jankovský, Kazymyrenko, Koudelka, Kovács, Krejčí, Kruis, Laloy, Landa, Ligurský, Lipping, López-Vázquez, Masson, Meeussen, Mollaali, Mon, Montenegro, Pisani, Poonoosamy, Pospiech, Saâdi, Samper, Samper-Pilar, Scaringi, Sysala, Yoshioka, Yuankai, Zuna and Kolditz. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Francis Claret, Bureau de Recherches Géologiques et Minières, Orléans, France

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