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Journal of Emerging Trends in Computing and Information Sciences >> Call for Papers Vol. 8 No. 3, March 2017

Journal of Emerging Trends in Computing and Information Sciences

Design and Implementation of Numeric Solver for Simulation of Diffusion of Nuclide in Backfilled Material

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Author Tao Liu, Ya-dong Wu, Yong-guo Han, Dong- mei Zhao
ISSN 2079-8407
On Pages 422-427
Volume No. 4
Issue No. 4
Issue Date May 01, 2013
Publishing Date May 01, 2013
Keywords diffusion of nuclide; backfilled materials; discrete schemes; numeric solver; finite element method


Abstract

In this paper, a model for diffusion of nuclide in backfilled material is introduced, and discrete schemes presented, too. The algorithm to accomplish the simulation is given, to avoid error and exception that may occur during calculation, the check mesh algorithm is introduced. To implement a numeric solver for the simulation of diffusion of nuclide, several classes are designed, such as runtime class, mesh data class, environment class, calculation parameter class and calculation class. And then this solver is implemented with finite element method. Finally, the solver is used to calculate one case built for a 10000-years simulation of diffusion of nuclide in backfilled materials. The simulating result is satisfying, and the curve of nuclide concentration over time shows the nuclide concentration field becomes a stable one after about 3000 years.
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