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Determination of factors influencing radionuclide transport in fractured crystalline rock

International High-Level Radioactive Waste Management 2019, IHLRWM 2019

Hadgu, Teklu H.; Kalinina, Elena A.; Wang, Yifeng

Numerical modeling of flow and transport through fractured crystalline rock was conducted to identify major factors that affect migration of radionuclides from a high-level nuclear waste repository. The study was based on data collected at the Mizunami Underground Research Laboratory (URL) in Japan. Distributions of fracture parameters were used to generate a selected number of DFN realizations. For each realization the DFN was upscaled to a continuum mesh to provide permeability and porosity fields. The upscaled permeability and porosity fields were then used to study flow and transport through the fractured rock in a site-scale domain. For the present study the focus is on the effect of domain size and on upscaling of DFN to a continuum system. Simulation results and analysis on various upscaling and boundary condition assumptions are presented.

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Results 26–50 of 124
Results 26–50 of 124