Open AccessNumerical simulation of the molten fuel relocation in fuel rod
Author(s) -
E. V. Usov,
А. А. Бутов,
I. A. Klimonov,
V. I. Chuhno,
П. Д. Лобанов
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1359/1/012081
Subject(s) - nuclear engineering , relocation , rod , nuclear fuel , thermal , materials science , core (optical fiber) , liquid fuel , nuclear reactor core , computer simulation , fission , mechanics , engineering , combustion , computer science , neutron , thermodynamics , chemistry , nuclear physics , physics , composite material , medicine , alternative medicine , organic chemistry , pathology , programming language
Thermal destruction of fuel rods is one of the most hazardous accidents in nuclear power plants. Fuel melt contains a lot of fission products that can release and start to transport along reactor loops. Relocation of the fuel melt can change the power of reactor due to feedback between density of materials and neutron field in reactor core. The presented paper contains a brief description of the ways to simulate fuel melting and molten fuel relocation. Basic equations, numerical approximation and closing relation are presented in the paper. The results of the simulation of the molten fuel relocation as a result of the fuel rod thermal destruction are discussed.