Impact Assessment of Erosion Development on Medium Motion in a Microelectrode

Abstract—The erosion impact on the microelectrode channel of the cooling medium’s motion is studied. Using the equation of continuity for a fluid flow inside the microelectrode channel, the analytical correlations were found between the change in the flow pressure drop and the number of defects (pores and cavities) of the channel’s internal cooling surface. Based on the obtained correlations, the method was proposed for an early detection of the defects’ nucleation in the channel surface layer inside the microelectrode. Simple analytical motion models for the cooling medium in the microelectrode were built. Model analysis was performed. The parameters of the microelectrode cooling medium’s motion were evaluated for finding an efficient way of removing the soil particles from the active erosion zone. The experimental results are in good agreement with the studies of other researchers.