Using COMSOL for the Transport Modelling of Some Special Cases in a Bentonite Buffer in a Final Repository for Spent Nuclear Fuel

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Abstract

The bentonite barrier is an essential part of a safe spent fuel repository in granitic bedrock. In this work COMSOL Multiphysicsr is used in modelling the Thermal (T), Hydrological (H), Mechanical (M) and Chemical (C) phenomena and processes taking place in a bentonite buffer. Special interest lies in systems in which the density of bentonite or bentonite pore water varies. Typically, variation occurs during the erosion and wetting stage of bentonite. The reason for developing COMSOL models for this purpose is the lack of commercially available software, which typically covers either THC or THM models; M and C are not modelled together.
Original languageEnglish
Title of host publicationCOMSOL Conference 2009 Milan. User Presentations and proceedings, CD
PublisherCOMSOL
Number of pages7
Publication statusPublished - 2009
MoE publication typeA4 Article in a conference publication
EventCOMSOL Conference 2009, Milan, Italy, 14. - 16. Oct. 2009 -
Duration: 1 Jan 2009 → …

Conference

ConferenceCOMSOL Conference 2009, Milan, Italy, 14. - 16. Oct. 2009
Period1/01/09 → …

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Keywords

  • THC
  • bentonite
  • modelling

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