Three-dimensional numerical simulation by upscaling of gas migration through engineered and geological barriers for a deep repository for radioactive waste (CROSBI ID 53131)
Prilog u knjizi | izvorni znanstveni rad
Podaci o odgovornosti
Ahusborde, Etienne ; Amaziane, Brahim ; Jurak, Mladen
engleski
Three-dimensional numerical simulation by upscaling of gas migration through engineered and geological barriers for a deep repository for radioactive waste
This paper presents the results of a benchmark study that compares a number of numerical models applied to a specific problem in the context of hydrogen flow and transport in a nuclear waste repository. The processes modelled are two-phase (water and hydrogen) immiscible compressible two-component transient flow in a heterogeneous porous medium under isothermal conditions. The three-dimensional (3D) model represents a module of a repository for high-level waste in a clay host rock. An upscaling technique and a vertex-centred finite-volume method are employed to yield very accurate solutions. Since the full range of results required in the benchmark is too large to be displayed in this paper, we focus on the evolution of the pressures, the saturations, the fluxes and the comparison of the numerical results with the other participants. A homemade C++ upscaling code and the parallel multiphase flow simulator DuMuX have been adopted for this study.
nuclear waste repository ; upscaling ; finite-volume method ; multiphase flow
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Podaci o prilogu
121-141.
objavljeno
10.1144/SP415
Podaci o knjizi
Gas Generation and Migration in Deep Geological Radioactive Waste Repositories
Shaw, R.P.
London : Delhi: The Geological Society
2015.
978-1-86239-722-4
0305-8719