A comparison of the FA’s models with the detailed and simplified description of the design elements in calculations by MCU code, A.S. Bikeev, S.V. Marin, E.A. Sukhino-Khomenko
21st Symposium of AER on VVER Reactor Physics and Reactor Safety (2011, Dresden, Germany)
Spectral and core calculations
Abstract
The full-scale three-dimensional computer model describing the physical processes
that occur in the reactor core of the VVER-1200 assumes the detailed description of the
geometry of the FA. However, detailed description of the geometry essentially complicates
the tasking of the entrance data, increases the time of calculation and probability of errors. As
a consequence, creating the simplified models of the design elements becomes necessary. In
the present work the simplified geometrical models of FA?s design elements are offered.
Comparative calculations of the simplified models and the exact models completely
corresponding to the working drawings of a general view ?KB “Hydropress” are carried out.
It is shown that in many problems using of simplified description of the FA elements
geometry is possible.