Validation of Fuel‐Coolant Interaction Model for Severe Accident Simulations | Zendy

В. И. Мелихов | Zendy; O. I. Melikhov | Zendy; S. E. Yakush | Zendy; Н. А. Ртищев | Zendy

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Validation of Fuel‐Coolant Interaction Model for Severe Accident Simulations

Author(s) -

В. И. Мелихов,

O. I. Melikhov,

S. E. Yakush,

Н. А. Ртищев

Publication year - 2011

Publication title -

science and technology of nuclear installations

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.417

H-Index - 24

eISSN - 1687-6083

pISSN - 1687-6075

DOI - 10.1155/2011/560157

Subject(s) - coolant , loss of coolant accident , nuclear engineering , code (set theory) , drag , range (aeronautics) , engineering , simulation , computer science , mechanical engineering , aerospace engineering , set (abstract data type) , programming language

A specialized module VAPEX-M has been developed and implemented as a part of an integral code, SOCRAT, to enable the modeling of fuel-coolant interactions (FCIs) during severe accidents. The mathematical model and correlations for the main physical processes are described. Results of computational analysis of three experimental series reported in the literature are presented. The calculations were carried out by the combined SOCRAT/VAPEX code and were aimed at validation of the predictive capabilities of the code. The experiments chosen cover a wide range of physical parameters, which enables different aspects of the code to be verified, that is, drag correlations (MAGICO-2000), evaporation rate (QUEOS), fuel fragmentation, and interaction with the coolant in all complexity (FARO). Generally, reasonable agreement between the measured data and calculated results was obtained, which allows one to use the combined SOCRAT/VAPEX code for severe accidents analysis

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