TY JOUR TI RESEARCH OF LOCAL RESISTANCE OF SLIDING DOORS IN VENTILATION AND ASPIRATION SYSTEMS KW ventilation KW aspiration KW wear and tear KW slide gate KW CFD model KW numerical experiment JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Tkach, L.V. AU Goltsov, A.B. AU Mihaylov, A.I. AU Shalpegin, D.S. PY 2026 IS 11 PB Belgorod State Technological University named after V.G. Shukhov