| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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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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