Development of codes and KASKAD complex

Abstract

A brief description of the development history of engineering computer codes for VVER reactor calculations, which have been developed in the VVER physics department of NRC Kurchatov institute, since the end of 1950 s till now, are given in the report. The modern status of the basic codes of the Kurchatov institute for VVER fuel loadings design and safety analysis (TVS-M, KASKAD-BIPR-PERMAK, BIPR8, PERMAK-3D, SC1, TOPRA, ATHLET/BIPR-VVER, TIGR-1, etc.) is characterized from various points of view. Some specific problems which are shown during designing of fuel cycles, optimisation of fuel and technologies will be commented. They demand decisions within the complex of programs and, accordingly, demand the further development of a complex or working out and inclusion in a complex of new programs.

Testing the NURESIM platform on a PWR main steam line break benchmark

“…In order to reduce the coupling efforts, system codes were provided with well-defined interfaces for the incorporation of 3D neutron kinetic core models. The system code ATHLET (Austregesilo, 2012) is one example, which has been coupled to the neutron kinetic core models KIK03D (Kereszturi et al, 2003), BIPR8 (Lizorkin et al, 2015) and DYN3D (Rohde et al, 2016) using an identical interface. All these types of coupling (including the NURESIM approach) use the so-called operator splitting approach.…”