[2E_PL01] Current Status and Issues Related to Detailed Analysis of Severe Accident
After the Fukushima Daiichi Nuclear power plant accident, severe accident (SA) researches become more important. Phenomena observed in SA are highly complex and affect each other. Additionally, they are in high pressure/temperature conditions and over a wide range of time scale. Therefore, observations and measurements by experiments are not straightforward and simulation technologies play an important role. In the present session, recent trends for SA simulations, experiments and international activities will be focused. Also, a framework of SA research to develop next-generation SA simulation technologies will be discussed.