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Apr 19 – 22, 2022
Vienna, Austria
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Models of the integral EUCLID/V2 code for numerical simulation of severe accidents in a sodium-cooled fast reactor with MOX and MNUP fuels

Apr 21, 2022, 1:40 PM
Vienna, Austria

Vienna, Austria

ORAL Track 6. Modelling, Simulations, and Digitilization 6.4 Simulation Tools for Safety Analysis


Dr Eduard Usov (IBRAE RAN)


For the modeling of severe accidents in a sodium-cooled fast reactor coupled multiphysics EUCLID/V2 code is being developed in Russian Federation in Codes of New Generation subproject of “Proryv” project. Multiphysics code allow calculating all relevant processes occurring during severe accident: reactor power change including due to boiling and melting, coolant boiling and dryout, cladding and fuel melting (for MOX fuel), as well as fuel dissociation (for MNUP fuel), movement and solidification of the resulting melt, the formation of a pool of melt, the release and transport of fission products in the reactor and beyond and others.
To simulate thermohydraulic processes HYDRA-IBRAE/LM module is used in the EUCLID/V2 code. This module simulates processes in one- and two-phase coolant flow. For fuel rod behavior modeling the BERKUT module is used. The processes of core damage are represented by the severe accident module SAFR. Also EUCLID/V2 code contains the DN3D neutronics module and the AEROSOL-LM module for calculation of the FP transport in the reactor facility and in the containment compartments. MCU-FR module based on Monte-Carlo method is used to estimate the secondary criticality of the core configuration during severe accident.
In the contribution the brief description of each module is given as well as the algorithms used to make the computational grids of all modules to be consistent and for modules coupling. Some results of the EUCLID/V2 V&V calculations are also presented.

Country/Int. organization Russian Federation
Affiliation/Organization IBRAE RAN
Speaker's title Mr
Speaker's email address

Primary authors

Valdimir Alipchenkov (IBRAE RAN) Dr Viktor Belikov (IBRAE RAN) Mr Alexander Belov (IBRAE RAN) Mr Valeriy Bereznev (IBRAE RAN) Dr Andrey Boldyrev (IBRAE RAN) Mr Anton Butov (IBRAE RAN) Mr Dmitriy Veprev (IBRAE RAN) Ms Irina Drobyshevskaya (IBRAE RAN) Mr Ilya Klimonov (IBRAE RAN) Mr Dmitriy Koltashev (IBRAE RAN) Mr Ivan Kudashov (IBRAE RAN) Dr Nastasya Mosunova (IBRAE RAN) Mr Dmitriy Nazarov (IBRAE RAN) Dr Vladimir Ozrin (IBRAE RAN) Dr Alexander Palagin (IBRAE RAN) Dr Valeriy Strizhov (IBRAE RAN) Dr Andrey Sorokin (IBRAE RAN) Mr Vladimir Tarasov (IBRAE RAN) Ms Tatyana Sycheva (IBRAE RAN) Dr Eduard Usov (IBRAE RAN) Dr Sergey Tsaun (IBRAE RAN) Mr Vladimir Chukhno (IBRAE RAN)

Presentation materials

Peer reviewing