In order to research the cavitation performance of self-excited oscillating pulsed cavitation nozzles,a nozzle model with a holed wind instrument type structure was constructed by using a Helmholtz nozzle prototype based on Fluent.The cavitation of the cavitation nozzle in 100 ms was numerically simulated based on the effect of the self-excited oscillating pulsed cavitation nozzles and multi-phase flow model.Then it was compared with the Helmholtz nozzle for cavitation effects.The diameter ratio and the arc...