Numerical cavitation erosion assessment of a water jet pump

Övrigt konferensbidrag, 2024

This study investigates cavitation erosion in a commercial water jet pump through numerical methods, with comparison to experimental paint test. The multiphase flow is modelled using a mixture modelling approach within an unsteady Reynolds Averaged Navier-Stokes (RANS) framework. The erosion model used, identifies and stores the "collapse cells" that contribute to erosion together with a measure of their erosion aggressiveness. This algorithm checks all cells at the end of each time step to avoid
incorrect identification of erosion areas. The comparison with experiments indicates that the proposed methodology is a reliable tool to assess cavitation erosion.