Investigation of the course of gas-dispersed flows in dust protection devices of gas turbine engines

Abstract

The article considers the actual problem of wear of compressor blades due to the ingress of dispersed particles into the air intakes of helicopter gas turbine engines. The degree of impact of erosion on the characteristics of engines depends on the concentration and mass of dust trapped in the engine during operation, as well as on its physicochemical parameters. To investigate the process of air purification in a dustproof device, the physicochemical parameters of the particles were analyzed. The experimental values of the drag coefficient for one-dimensional movement of particles are determined. The relationship between the soaring velocity and the concentration of solid particles of various sizes during their movement in a gas flow is demonstrated. The dependence of the shape coefficient of dispersed particles on the equivalent diameter and concentration of the solid phase is identified. The results obtained can be used in the projecting and calculations of dust protection devices of gas turbine engines doi 10.54708/19926502_2025_29210828