安全评价软件Ecolego解法器选取研究

Abstract

Abstract: Ecolego software has been widely used in safety assessment of radioactive waste disposal sites. The software provides lots of solvers, while the performance of different solvers varies greatly. How to select a suitable solver has caused troubles to users. On the basis of discussing the characteristics of each solver, the classical Swedish safety assessment model was tested with different solvers of Ecolego version 6.5. The results show that the NDF solver requires least calculating time in geosphere and whole models. BDF and RADAU5 solvers require the least time in near-field and biosphere models respectively. The Rosenbrock and TR-BDF2 solvers are accurate and stable. Considering the time-consumption and precision of calculation, the TR-BDF2 solver is recommended for safety assessment of high-level radioactive waste disposal sites which are similar to Sweden’s site.

Key words: Ecolego, solver selection, radioactive waste disposal, safety assessment, time-consumption analysis, resolution

CLC Number:

TL942+.1

LIU Xingwei, WANG Xuhong, LV Tao, LI Xingyu. Study on selection of safety assessment software Ecolego solver[J].RADIATION PROTECTION, 2019, 39(2): 95-104.

References

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Study on selection of safety assessment software Ecolego solver

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