有限要素法を用いた3次元地下水流・核種移行・熱解析連成問題のコードの開発と試算
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概要
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In the safety analyses of radioactive waste disposal, it is necessary and indispensable to analyze coupled problems of groundwater flow, migration of radioactive nuclides and thermal conductivity. Three-dimensional codes by the finite element method are developed for solving the groundwater flow, migration of radioactive nuclides and temperature ditribution. Three-dimensional approaches reduce analytical uncertainty when the repository is complex in geological and physical aspects, and give effective and realistic estimation in the radioactive waste disposal. These three-dimensional codes are linked with the preprocessor JMESH to facilitate mesh generation and also with the postprocessor JPOST to display the calculated results graphically or perspectively. Three-dimensional trial calculation results of migration of nuclides and temperature by these codes are carried out and compared with the test data at JAERI (Japan Atomic Energy Research Institute) and STRIPA in SWEDEN field experiments. The codes are prepared for analyses of the small size pit experiment and estimation of large size repository.
- 1988-09-15
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