The study of two-phase flow characteristics by a non-invasive method

One of the pioneer methods of surface processing of machine part is gas thermal spraying. The technology includes a variety of processes affecting sprayed-on materials in order to accelerate and heat their particles. However, the influence of the operating conditions of processing units on the speed and temperature of particles has not been adequately studied. In this work, the AccuraSpray-G3 system for non-invasive diagnostics of a two-phase flow is tested to ensure its application to the analysis of subsonic two-phase flows. The relationships between the speed and temperature of the particles in the condensed phase and the main operating conditions of processing units are obtained. The results of the study show the efficiency of using the AccuraSpray-G3 system for the analysis of two-phase flows in order to optimize the modes of operation of processing units. The results of research will be useful for improving the electric arc metal spraying technology.

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