In order to study the cavitation and hydrodynamic characteristics of propeller under uniform and non-uniform flows, numerical investigations are performed using interPhaseChangeDyMFoam in the open source computational fluid dynamics (CFD) software platform OpenFOAM with Schnerr-Sauer cavitation model. The simulation results can be used as a reference to evaluate the working ability of a propeller in case of actual navigation. A new grid encryption method is adopted in the research to better capture the existence of vortex cavitation at the propeller tip. The method of function input is carried out in the study to simulate the condition of non-uniform flow and reduce the calculation amount. Typical unsteady dynamics are predicted by the Reynolds-averaged Navier-Stokes (RANS) method with a modified shear stress transport (SST) k − ω turbulence model. The numerical results of the propeller such as cavitation shape and pressure distribution under uniform and non-uniform flow are analyzed and compared with each other.

为了研究螺旋桨在均匀和非均匀流动下的气蚀和流体动力特性，在带有Schnerr-Sauer气蚀模型的开源计算流体动力学（CFD）软件平台OpenFOAM中，使用interPhaseChangeDyMFoam进行了数值研究。仿真结果可作为评估实际航行情况下螺旋桨工作能力的参考。研究中采用了一种新的网格加密方法，以更好地捕获螺旋桨尖端涡流空化的存在。在研究中采用函数输入法来模拟非均匀流动的情况并减少计算量。典型的非稳态动力学可通过雷诺平均Navier-Stokes（RANS）方法和修正的切应力传递（SST）来预测k −ω湍流模型。分析并比较了螺旋桨的数值结果，例如均匀和不均匀流动下的气蚀形状和压力分布。