2012 Fiscal Year Final Research Report
Development of Mesoscale Analysis Method for Fuel Debris MovementBehavior
| Project/Area Number |
22560828
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
MORITA Koji 九州大学, 大学院・工学研究院, 教授 (40311849)
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| Co-Investigator(Renkei-kenkyūsha) |
MATSUMOTO Tatsuya 九州大学, 大学院・工学研究院, 助教 (90325514)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 高速炉 / 炉心損傷事故 / 燃料デブリ / 数値解析 / 粒子法 |
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| Research Abstract |
The present study focuses on dynamic behavior of fuel debris bed, which is critical as a dominant factor in the long-term decay heat removal process aftercore disruptive accident of fast reactors. A particle-based simulation code was developed as a mesoscale analysis method to evaluate fundamental characteristics of fluid-dynamic behavior in fuel debris beds. A small-scale experiment was also performed simulatingsolid-gas-liquid three-phase flows in a solid particle bed, and then the developed method was verified based on experimental results.
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