Adaptation of the CTART4 Code for Calculation of Fast Nonstationary Processes in a Research Reactor
Physics of Atomic Nuclei（2021）
National Research Center Kurchatov Institute
Abstract
The paper presents the results of numerical studies of nonstationary processes without feedback in a research reactor. The obtained results show a large degree of uncertainty of the calculated functionals depending on the parameters of the time, spatial, and energy grids. A brief description of the parallel version of the CTART4 code is given.
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Key words
beyond design basis accidents,reactor runaway on prompt neutrons,multigroup diffusion approximation,R-Z geometry,parallel calculations
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