Comparison of numerical tools through thermo-hydro-gas transport modeling for a geological repository in Boom clay

Li Yu; Eef Weetjens; Janez Perko; Dirk Mallants

doi:10.13182/NT11-A11749

Comparison of numerical tools through thermo-hydro-gas transport modeling for a geological repository in Boom clay

Li Yu, Eef Weetjens, Janez Perko, Dirk Mallants

Research output › peer-review

Abstract

Two numerical codes, TOUGH2 with and CODE_BRIGHT, were compared in a confidence building effort for multiphase flow problems in a geological repository in Boom Clay, Belgium. A model study comparison between two codes was carried out through three numerical examples based on the current Belgian multibarrier repository design for geological disposal of high-level waste, including a one-dimensional hydro-gas (HG) case, a two-dimensional (2-D) axisymmetrical HG case with a constant hydrogen production rate, and a 2-D axisymmetrical thermo-hydro-gas (THG) case with time-varying heat and gas production rate. Comparison between numerical results demonstrates that the two numerical tools give sufficiently similar results in all three cases, thus providing evidence for the consistency of these tools in solving HG and THG problems in Boom Clay.

Original language	English
Pages (from-to)	411-423
Number of pages	13
Journal	Nuclear Technology
Volume	174
Issue number	3
DOIs	https://doi.org/10.13182/NT11-A11749
State	Published - Jun 2011
Event	2009 TOUGH2 Symposium - Berkeley Lawrence National Lab, Berkeley, CA Duration: 14 Sep 2009 → 16 Sep 2009

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10.13182/NT11-A11749License: Unspecified

Cite this

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title = "Comparison of numerical tools through thermo-hydro-gas transport modeling for a geological repository in Boom clay",

abstract = "Two numerical codes, TOUGH2 with and CODE_BRIGHT, were compared in a confidence building effort for multiphase flow problems in a geological repository in Boom Clay, Belgium. A model study comparison between two codes was carried out through three numerical examples based on the current Belgian multibarrier repository design for geological disposal of high-level waste, including a one-dimensional hydro-gas (HG) case, a two-dimensional (2-D) axisymmetrical HG case with a constant hydrogen production rate, and a 2-D axisymmetrical thermo-hydro-gas (THG) case with time-varying heat and gas production rate. Comparison between numerical results demonstrates that the two numerical tools give sufficiently similar results in all three cases, thus providing evidence for the consistency of these tools in solving HG and THG problems in Boom Clay.",

keywords = "Multiphase flow, Thermo-hydro-gas coupling, Deep clay formation",

author = "Li Yu and Eef Weetjens and Janez Perko and Dirk Mallants",

note = "Score = 10; 2009 TOUGH2 Symposium ; Conference date: 14-09-2009 Through 16-09-2009",

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T1 - Comparison of numerical tools through thermo-hydro-gas transport modeling for a geological repository in Boom clay

AU - Yu, Li

AU - Weetjens, Eef

AU - Perko, Janez

AU - Mallants, Dirk

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N2 - Two numerical codes, TOUGH2 with and CODE_BRIGHT, were compared in a confidence building effort for multiphase flow problems in a geological repository in Boom Clay, Belgium. A model study comparison between two codes was carried out through three numerical examples based on the current Belgian multibarrier repository design for geological disposal of high-level waste, including a one-dimensional hydro-gas (HG) case, a two-dimensional (2-D) axisymmetrical HG case with a constant hydrogen production rate, and a 2-D axisymmetrical thermo-hydro-gas (THG) case with time-varying heat and gas production rate. Comparison between numerical results demonstrates that the two numerical tools give sufficiently similar results in all three cases, thus providing evidence for the consistency of these tools in solving HG and THG problems in Boom Clay.

AB - Two numerical codes, TOUGH2 with and CODE_BRIGHT, were compared in a confidence building effort for multiphase flow problems in a geological repository in Boom Clay, Belgium. A model study comparison between two codes was carried out through three numerical examples based on the current Belgian multibarrier repository design for geological disposal of high-level waste, including a one-dimensional hydro-gas (HG) case, a two-dimensional (2-D) axisymmetrical HG case with a constant hydrogen production rate, and a 2-D axisymmetrical thermo-hydro-gas (THG) case with time-varying heat and gas production rate. Comparison between numerical results demonstrates that the two numerical tools give sufficiently similar results in all three cases, thus providing evidence for the consistency of these tools in solving HG and THG problems in Boom Clay.

KW - Multiphase flow

KW - Thermo-hydro-gas coupling

KW - Deep clay formation

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_113879

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