Development of a multiphysics numerical solver for modeling the behavior of clay-based engineered barriers

Vicente Navarro (Corresponding Author), Laura Asensio, Heidar Gharbieh, Gema De la Morena, Veli Matti Pulkkanen

Research output: Contribution to journalArticleScientificpeer-review

Abstract

This work describes the development of a numerical module with a multiphysics structure to simulate the thermo-hydro-chemo-mechanical behavior of compacted bentonites. First, the conceptual model, based on the state-of-the-art formulation for clay-based engineered barriers in deep geological repositories, is described. Second, the advantages of multiphysics-based modules are highlighted. Then, the guidelines to develop a code using such tools are outlined, presenting an example of implementation. Finally, the simulation of three tests that illustrate the behavior of compacted bentonites assesses the scope of the developed code. The satisfactory results obtained, and the relative simplicity of implementation, show the opportunity of the modeling strategy proposed.

Original languageEnglish
Number of pages13
JournalNuclear Engineering and Technology
DOIs
Publication statusPublished - 10 Feb 2019
MoE publication typeNot Eligible

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Geological repositories
Clay

Keywords

  • Clay-based barrier
  • Compacted bentonite
  • Deep geological repository
  • Multiphysics modeling
  • Thermo-hydro-chemo-mechanical behavior

Cite this

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title = "Development of a multiphysics numerical solver for modeling the behavior of clay-based engineered barriers",
abstract = "This work describes the development of a numerical module with a multiphysics structure to simulate the thermo-hydro-chemo-mechanical behavior of compacted bentonites. First, the conceptual model, based on the state-of-the-art formulation for clay-based engineered barriers in deep geological repositories, is described. Second, the advantages of multiphysics-based modules are highlighted. Then, the guidelines to develop a code using such tools are outlined, presenting an example of implementation. Finally, the simulation of three tests that illustrate the behavior of compacted bentonites assesses the scope of the developed code. The satisfactory results obtained, and the relative simplicity of implementation, show the opportunity of the modeling strategy proposed.",
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Development of a multiphysics numerical solver for modeling the behavior of clay-based engineered barriers. / Navarro, Vicente (Corresponding Author); Asensio, Laura; Gharbieh, Heidar; De la Morena, Gema; Pulkkanen, Veli Matti.

In: Nuclear Engineering and Technology, 10.02.2019.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Asensio, Laura

AU - Gharbieh, Heidar

AU - De la Morena, Gema

AU - Pulkkanen, Veli Matti

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