TY JOUR TI AERODYNAMIC STUDY OF FLAT ROOFS USING NUMERICAL MODELING KW roofing systems KW computational fluid dynamics KW boundary conditions KW wind flows KW CFD-modeling KW aerodynamics of buildings JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Shilov, S.S. AU Urtenkov, A.I. AU Moleva, A.A. PY 2025 IS 10 PB Belgorod State Technological University named after V.G. Shukhov