Chapter 1 Introduction
1��1 Generation-IV Nuclear Reactor Systems
1��2 Sodium-Cooled Fast Reactors
1��2��1 Development history and current situation of SFRs
1��2��2 System characteristics of SFRs
1��3 SFR Safety Analysis and Severe Accidents
1��4 Particle-Bed-Related Phenomena During SFR Severe Accident
1��4��1 Molten-poolmobility
1��4��2 Molten-pool sloshing motion
1��4��3 Debris-bed formation behavior
1��4��4 Debris-bed self-leveling behavior
1��5 Summary
References

Chapter 2 Molten-Pool Mobility
2��1 Introduction
2��2 Theoretical Models and Methods for Molten-Pool Mobility
2��2��1 Multiphase flow model
2��2��2 Particle viscosity model
2��2��3 Particle jamming model
2��3 Molten-Pool Mobility in a Liquid-Dominant Particle- Rich Pool
2��3��1 Experimental conditions in a liquid-dominant particle-rich pool
2��3��2 Simulation condition for the liquid-dominant particle-rich pool experiments
2��3��3 Analyses of the liquid-dominant particle-rich pool experiments and simulations
2��4 Molten-Pool Mobility-in a Particle-Dominant Bubble Visualization Pool
2��4��1 Experimental condition in a particle-dominant bubble-visualization pool
2��4��2 Simulation condition for the particle-dominant bubble-visualization pool experiments
2��4��3 Analyses of the particle-dominant bubble-visualization pool experiments and simulations
2��5 Summary
References
Chapter 3 Molten-PooI Sloshing Motion
3��1 Introduction
3��2 Sloshing Motion in a Pure Liquid Pool
3��2��1 Symmetric dam-break conditions
3��2��2 Asymmetric dam-break condition
3��2��3 Fluid-step condition
3��2��4 Centralized molten-fuel-fragment falling
condition
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Chapter 4 Debris Bed Formation Behavior
Chapter 5 Debris Bed Self-Leveling Behavior
Chapter 6 Conclusion and Future Prospect