Goal. The problem posed in the scientific research work can be solved using CFD research of the gas flow structure in a spiral direct-flow cyclone. Relevance of the work. Knowledge of the gas flow structure contributes to better optimization of the design of the dust collector. The methodology consists in determining the gas flow structure of a spiral direct-flow cyclone, the 3D model of which was created in the CAD program, using CFD programs. Results. An analysis of the velocity distribution data and flow velocity components in a spiral direct-flow cyclone is presented. A comparison of the aerodynamic characteristics of the device during its operation on the suction and discharge lines at three different cross-sections in height is carried out. Similarities and differences in the flow structure and velocity values depending on the operating mode and position of the section are revealed. Scientific novelty. The gas flow structure in a spiral direct-flow cyclone is studied for the first time. Practical significance. Analysis of the gas flow structure is important for understanding separation processes and optimizing cyclone design.
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