GROUNDWATER FLOW ANALYSIS USING MIXED HYBRID FINITE ELEMENT METHOD FOR RADIOACTIVE WASTE DISPOSAL FACILITIES

DOI BIBCODE 17 References

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  • 混合化形式有限要素法による放射性廃棄物処分施設を対象とした地下水流動解析

Abstract

 In safety assessments of radioactive waste disposal facilities, ground water flow analysis are used for calculating the radionuclide transport pathway and the infiltration flow rate of groundwater into the disposal facilities. For this type of calculations, the mixed hybrid finite element method has been used and discussed about the accuracy of ones in Europe. This paper puts great emphasis on the infiltration flow rate of groundwater into the disposal facilities, and describes the accuracy of results obtained from mixed hybrid finite element method by comparing of local water mass conservation and the reliability of the element breakdown numbers among the mixed hybrid finite element method, finite volume method and nondegenerated finite element method.

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