中文摘要：

使用基于有限体积法的计算流体动力学软件Fluent,采用标准k-ε模型和多相流空化模型,对簧片尺寸一定、不同喷口厚度和不同喷口与簧片间距的悬臂式簧片哨内的空化流场进行数值模拟,通过计算簧片哨内湍动能、压力和速度分布,研究了操作参数、簧片哨的结构对空化效果的影响.结果表明：悬臂式簧片哨的空化主要发生在簧片尖劈处,簧片哨的操作参数以及结构形式对空化效果有着明显的影响.

英文摘要：

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.