Studies on Relocation Behavior of Molten Core Materials in the Core Disruptive Accident of Sodium-cooled Fast Reactors

Mamoru Konomura

Presentation information

Oral presentation

III. Fission Energy Engineering » 306-1 Nuclear Safety Engineering, Nuclear Installation Safety, PSA

[2B06-09] Safety Assessment for Fast Reactors 1

Thu. Sep 14, 2017 10:50 AM - 11:55 AM Room B (B12 - B1 Block)

Chair:Tomoyuki Sugiyama (JAEA)

11:35 AM - 11:50 AM

[2B09] Studies on Relocation Behavior of Molten Core Materials in the Core Disruptive Accident of Sodium-cooled Fast Reactors

(5)A Behavior of a Heavy Metal Jet with Free Surface Conditon of MPS Method

*Mamoru Konomura¹, Kenji Kamiyama² (1. Univ. of Fukui, 2. JAEA)

Keywords:Moving Particle Method, Moving Particle Semi-implicit Method, Jet, Cavity, Free Surface Condition

A behavior of a heavy metal jet which ran into a water pool was analyzed with the Moving Particle Semi-implicit Method. A pressure calculation without a free surface condition proved useful to suppress unrealistic cavity.