Zaporzhin Kirill V. junior researcher NRC "Kurchatov Institute" Zaporzhin_KV@nrcki.ruModernization of Subchannel Thermal-Hydraulic Code SC-INT 12/10/2025 2025 - #04 Thermal physics and thermal hydraulics Vertikov E.A. Zaporzhin K.V. Oleksyuk D.A. Khamaza V.A. Khudykin A.M. Glazov M.A. Morozkin O.N.