Fractional Advection Diffusion Models for Radionuclide Migration in Multiple Barriers System of Deep Geological Repository
MATHEMATICS(2022)
Abstract
Based on the multiple barriers concept of deep geological disposal of high-level waste, fractional advection diffusion equations for radionuclide migration in multiple layers low-permeability porous media are proposed in this work. The presented fractional advection diffusion models in terms of different definitions of fractional derivative are analytically addressed via the Laplace integral transform method. This work provides a theoretical foundation for further simulations of radionuclide migration in the multiple barriers system of the high-level waste repository.
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Key words
radionuclide migration,multiple layers,fractional derivative,advection diffusion
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