Abstract
In 2004 the Swedish Nuclear Fuel and Waste Management Co. (SKB) initiated the project 'Task Force on Engineered Barrier Systems'. This project has the objective to verify the feasibility of modelling THM-coupled processes (task 1) and gas migration processes (task 2) in clay-rich buffer materials. The tasks are performed on the basis of appropriate benchmarks. This report documents the modelling results of the THM-benchmark 2.2 - the Canister Retrieval Test - using the code GeoSys/RockFlow. The Temperature Buffer Test which was performed in the immediate vicinity of the Canister Retrieval Test is included in the model. Especially the heat transport requires the handling of the problem in 3-D. Due to limitations imposed by post-processing different spatial discretisations of the model had to be used during the processing of the benchmark. The calculated temperatures agree well with measured data. Concerning hydraulic parameters the values of permeability and tortuosity were varied in the calculations. The time necessary to saturate the buffer is very sensitive to both of these values. In comparison to thermal and hydraulic processes the model only has limited capacity to predict the measured evolution of total pressure
Nowak, Thomas;
Kunz, Herbert
[1]
- Federal Inst. for Geosciences and Natural Resources, Hannover (Germany)
Citation Formats
Nowak, Thomas, and Kunz, Herbert.
Aespoe Hard Rock Laboratory. Aespoe Task Force on Engineered Barrier System. Modelling of THM-coupled processes for benchmark 2.2 with the code GeoSys/RockFlow.
Sweden: N. p.,
2010.
Web.
Nowak, Thomas, & Kunz, Herbert.
Aespoe Hard Rock Laboratory. Aespoe Task Force on Engineered Barrier System. Modelling of THM-coupled processes for benchmark 2.2 with the code GeoSys/RockFlow.
Sweden.
Nowak, Thomas, and Kunz, Herbert.
2010.
"Aespoe Hard Rock Laboratory. Aespoe Task Force on Engineered Barrier System. Modelling of THM-coupled processes for benchmark 2.2 with the code GeoSys/RockFlow."
Sweden.
@misc{etde_1011596,
title = {Aespoe Hard Rock Laboratory. Aespoe Task Force on Engineered Barrier System. Modelling of THM-coupled processes for benchmark 2.2 with the code GeoSys/RockFlow}
author = {Nowak, Thomas, and Kunz, Herbert}
abstractNote = {In 2004 the Swedish Nuclear Fuel and Waste Management Co. (SKB) initiated the project 'Task Force on Engineered Barrier Systems'. This project has the objective to verify the feasibility of modelling THM-coupled processes (task 1) and gas migration processes (task 2) in clay-rich buffer materials. The tasks are performed on the basis of appropriate benchmarks. This report documents the modelling results of the THM-benchmark 2.2 - the Canister Retrieval Test - using the code GeoSys/RockFlow. The Temperature Buffer Test which was performed in the immediate vicinity of the Canister Retrieval Test is included in the model. Especially the heat transport requires the handling of the problem in 3-D. Due to limitations imposed by post-processing different spatial discretisations of the model had to be used during the processing of the benchmark. The calculated temperatures agree well with measured data. Concerning hydraulic parameters the values of permeability and tortuosity were varied in the calculations. The time necessary to saturate the buffer is very sensitive to both of these values. In comparison to thermal and hydraulic processes the model only has limited capacity to predict the measured evolution of total pressure}
place = {Sweden}
year = {2010}
month = {Feb}
}
title = {Aespoe Hard Rock Laboratory. Aespoe Task Force on Engineered Barrier System. Modelling of THM-coupled processes for benchmark 2.2 with the code GeoSys/RockFlow}
author = {Nowak, Thomas, and Kunz, Herbert}
abstractNote = {In 2004 the Swedish Nuclear Fuel and Waste Management Co. (SKB) initiated the project 'Task Force on Engineered Barrier Systems'. This project has the objective to verify the feasibility of modelling THM-coupled processes (task 1) and gas migration processes (task 2) in clay-rich buffer materials. The tasks are performed on the basis of appropriate benchmarks. This report documents the modelling results of the THM-benchmark 2.2 - the Canister Retrieval Test - using the code GeoSys/RockFlow. The Temperature Buffer Test which was performed in the immediate vicinity of the Canister Retrieval Test is included in the model. Especially the heat transport requires the handling of the problem in 3-D. Due to limitations imposed by post-processing different spatial discretisations of the model had to be used during the processing of the benchmark. The calculated temperatures agree well with measured data. Concerning hydraulic parameters the values of permeability and tortuosity were varied in the calculations. The time necessary to saturate the buffer is very sensitive to both of these values. In comparison to thermal and hydraulic processes the model only has limited capacity to predict the measured evolution of total pressure}
place = {Sweden}
year = {2010}
month = {Feb}
}