MPS method simulation on shock wave propagation of Dam-Break over a wet channel for severe accident reactor investigation
(a) A P A Mustari, (b) Y Yulianto, (c)M R Arbie

(a) Nuclear Physics and Biophysics Research Division, Physics Department, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Jl. Ganesha 10, Bandung 40132, Indonesia.
(b) Physics Department, Faculty of Mathematics and Natural Sciences, Halu Oleo University,
Jl. H.E.A. Mokodompit, Kendari 93232, Indonesia.
(c) Physics of Earth and Complex Systems Research Division, Physics Department, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Jl. Ganesha 10, Bandung 40132, Indonesia.

Abstract

Relocation of molten corium during severe accident of a nuclear reactor is a complex phenomenon. One of them is a spreading process of molten fuel in the core catcher. Thus, the molten fuel relocation including spreading through channel is the key factor in accident mitigation. MPS method has been used to simulate severe accident cases, due to its advantage to deal with surface deformation. The wave propagation of fluid flow over a wet channel case was used to validate MPS simulation. In this investigation, 2D simulation was conducted to simulate the case. The height comparison was made for two points between experiment and simulation. It shows good agreement in the parameter of water level. Furthermore, simulation generate pressure profile on the wall.

Keywords: salt water, Dam-break, shock wave propagation, MPS method

Topic: Mechanical Engineering