The models used in the program SubChannel Na/V1 0 to calculate single-phase regimes of flow and heat-transfer for performing channel-by-channel (cellular) thermohydraulic calculations of sodium-cooled fuel assemblies (FA) are described. Modeling made it possible to obtain the distribution of the coolant temperature and velocity in the FA channels along the longitudinal and transverse sections of FA and the temperature of the fuel-rod cladding. The results of the validation of the program on the data of an experiment performed at ORNL (USA) on the 19-rod assembly FFM 2A are presented.
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Translated from Atomnaya Énergiya, Vol. 132, No. 6, pp. 331–336, June, 2022.
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Alipchenkov, V.M., Grudtsyn, Y.V., Mosunova, N.A. et al. Three-Liquid, Two-Phase, Per-Channel Thermohydraulics Code Subchannel-Na/V1.0 for Single-Phase Sodium-Coolant Flows and Heat-Transfer: Key Models. At Energy 132, 347–352 (2022). https://doi.org/10.1007/s10512-023-00958-9
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DOI: https://doi.org/10.1007/s10512-023-00958-9