Cavitation Erosion Modelling on a Radial Divergent Test Section Using RANS

Cavitation is the phenomenon of fluid evaporation in hydraulic systems, which occurs due to a pressure drop below value vapor pressure. For numerical modeling this generally undesirable phenomenon, often associated with material damage (erosion), there are various mathematical transfer models that have been validated past. There different approaches predicting cavitation erosion, mostly experimental Recently developed development simulations. They describe erosion based on theoretical considerations, such as Pressure wave hypothesis, Microjet or combination both. In present paper, an analysis Schnerr-Sauer transport model was used, upgraded erosive potential energy hypothesis for prediction. The extended has applied case radial divergent test section three formulations. results simulation were compared and work performed by other authors. study shows distribution surface accumulated agrees results, although certain differences exist between method appears be appropriate further use, materials response future.