By using the finite volume method based on the computational fluid dynamics software Fluent, the cavitation flow fields in the nantilever reed-whistle with same reed size、different nozzle thickness and different distance between the reed and the nozzle were simulated by adopting the standard k-ε model and multiphase flow model of cavitation. The distribution of pressure, the distribution of turbulent kinetic energy and that of velocity of the cavitation flow field in the reed-whistle were computed. The influence of operating conditions and the structure of the reed-whistle on the cavitation were researched. The results showed that the cavitation occurs mainly in the reed wedges, and the operating conditions and the structure of reed-whistle have obvious effect on the cavitation.

acoustic cavitation; reed-whistle; cavitation flow field; turbulent kinetic energy; distribution of pressure; distribution of velocity