TY JOUR TI EFFICIENCY OF FRACTIONATION OF FINELY DISPERSED BULK MATERIAL IN A MULTI-VORTEX CLASSIFIER WITH CHANGING DESIGN PARAMETERS KW MULTI-VORTEX CLASSIFIER KW FRACTIONATION KW BULK MATERIALS KW SEPARATION KW DESIGN PARAMETERS KW CLASSIFICATION EFFICIENCY KW CFD MODELING JO Herald of Technological University AU Prec, M.A. AU Zinurov, V.E. AU Dmitriev, A.V. AU Vdovina, V.A. PY 2025 IS 28 PB Kazan National Research Technological University