[1B13-17] Numerical simulation on the thermal hydraulics

[1B14] Water Spreading on Floor by Explicit Moving Particle Simulation Method

＊Zidi Wang¹, Tiangang Zhang¹, Kohei Murotani¹, Kazuya Shibata¹, Seiichi Koshizuka¹ (1.University of Tokyo)

Keywords:numerical simulation, water spreading, moving particle simulation, explicit method

In order to simulate the flooding phenomenon in nuclear power plant caused by the water tank breaking, LOCA and so on, validation of water spreading on floor needs to be studied. In this paper, the Explicit Moving Particle Simulation method is employed to analyze water spreading on floor. The simulation results, especially the leading edge behaviors, are compared with the experimental data. Besides, convergence of the particle sizes is investigated. Additionally, simulation with polygon wall boundary model is also presented in this study.