Abstract

Several known methods of calculating the effects of erosion damage caused by monofractional and monokinetic stream of droplets have been described and compared to one another. A new equation describing the mean depth of damage in terms of the exposure time has been proposed for the case of such a stream of droplets. For the case of erosion damage caused by a polyfractional stream of droplets two known and two new methods of superimposing the erosion effęcts duę to respective fractions of this stream have been presented and compared to one another. Tlre authors consider the present paper to be a further step, after [1, 2, 3], towards the better prediction of the erosion damage progress.