EDN: OXDIGX
Authors & Affiliations
Bayaskhalanov M.V., Merinov I.G., Kharitonov V.S., Korsun A.S.
National Research Nuclear University MEPhI, Moscow, Russia
Bayaskhalanov M.V. — Senior Lecturer, Department of Thermophysics. Contacts: 31, Kashirskoye sh., Moscow, Russia, 115409. Tel.: +7 (925) 876-14-28; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Merinov I.G. — Associate Professor of the Department of Nuclear Physics and Technology, Cand. Sci. (Tech.).
Kharitonov V.S. — Associate Professor of the Department of Nuclear Physics and Technology, Cand. Sci. (Tech.).
Korsun A.S. — Associate Professor, Cand. Sci. (Tech.).
Abstract
The paper presents a description of a software module designed to simulate thermal-hydraulic processes in the core and heat exchange equipment of promising nuclear reactors with liquid metal coolant. In the software module, using the finite element method, the use of a model of an anisotropic porous body is implemented; an integral turbulence model is used to close the model equations. The results of validation calculations on the problem of studying the mass transfer of Na-K coolant in a 19-rod experimental fuel assembly are presented. The experiments investigated stationary velocity fields in a bundle of rods with partial blocking of the flow section of the fuel assembly. The presence of the blocking made it possible to evaluate the adequacy of the modeling of mass transfer processes by the developed software module under conditions of intense coolant flows into the fuel assemblies. A comparison of the results obtained in the course of calculations with experimental data showed that the software module is capable of describing with sufficient accuracy the mass transfer in a fuel assembly in the presence of a blocked flow area. Thus, the developed software module can be used to simulate processes with a clearly defined three-dimensional flow pattern in a bundle of rods.
Keywords
heat and mass transfer, sodium-potassium alloy, liquid metal, simaulation, porous body model, turbulence, blocking, vortex
Article Text (PDF, in Russian)
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UDC 621.039
Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2024, no. 2, 2:17
