TY CONF TI MODELING OF AIR FLOW HYDRODYNAMICS IN A GAS INDUSTRIAL FURNACE TO ASSESS THE TEMPERATURE PROFILE OF AN OBJECT'S SURFACE KW mathematical modeling KW thermal convection JO OPERATOR EQUATIONS AND SOME RELATED ISSUES IN APPLIED MATHEMATICS AU Slobodin, A.D. AU Selivanov, V.F. AU Ivanov, A.V. AU Khvostov, A.A. PY 2026 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov