OBRABOTKAMETALLOV MATERIAL SCIENCE Vol. 25 No. 4 2023 0,0E+0 5,0E-4 1,0E-3 1,5E-3 2,0E-3 2,5E-3 3,0E-3 3,5E-3 4,0E-3 0,0E+0 5,0E-6 1,0E-5 1,5E-5 2,0E-5 2,5E-5 3,0E-5 3,5E-5 4,0E-5 4,5E-5 SF 0.25 SF 0.5 SF 0.75 Length, m Diameter, m Fig. 16. Average particle diameter distribution near the sample wall along its length Fig. 17. A micrograph of erodent particles (quartz particles) As is shown, erosion rate is independent of the turbulence model and its parameter choice at least or the studied conditions, and, oppositely, high dependence on the particle shape. This shows a need of more attention to the parameters of particles in contrast to the carrier flow modeling parameters. In future additional research should be carried on the effects of particle rotation, other particles distributions, angularity of particles and particles interactions – collisions, fracture and coalescence. As shown before, CFD modeling of erosion process accounting for particle shapes can allow to predict and manage erosion rate on the treated surface. This might be useful for managing the erosive wear location and amplitude in machinery parts and also for working of metals during peening and peen forming processes.
RkJQdWJsaXNoZXIy MTk0ODM1