We report the first high-order eddy-resolving simulation of flow over a marine propeller using a recently developed high-order sliding-mesh method. This method employs the flux reconstruction framework and a new dynamic curved mortar approach to handle the complex rotating geometries. For a wide range of working conditions, it is validated to predict the loads very accurately against experiments. The method’s low-dissipation characteristic has allowed the capturing of a broad spectrum of turbulence structures for very long distances even on a very coarse grid. Comparison with a previous low-order simulation is also carried out to show the low-dissipation advantage of the present simulations. From detailed load analysis, the major loads and their distributions and time and frequency scales are identified. Visualizations of the instantaneous, phase-averaged, and time-averaged flow fields have revealed the processes of tip vortex formation, major vortex evolutions, and flow instability developments at different working conditions. The effects of different fairwaters on the propeller’s overall performance are also quantitatively assessed.

我们报告了使用最新开发的高阶滑动网格方法对船用螺旋桨的流动进行的第一个高阶涡旋解析模拟。该方法采用磁通重建框架和新的动态弯曲砂浆方法来处理复杂的旋转几何形状。对于广泛的工作条件，经过验证可以相对于实验非常准确地预测载荷。该方法的低耗散特性使得即使在非常粗糙的网格上，也可以捕获很长距离的宽范围湍流结构。还与以前的低阶仿真进行了比较，以显示本仿真的低耗散优势。通过详细的负载分析，可以确定主要负载及其分布以及时间和频率范围。瞬时的可视化 相位平均和时间平均的流场揭示了在不同工作条件下尖端涡旋形成，主要涡旋演变以及流动不稳定性发展的过程。还定量评估了不同的淡水对螺旋桨整体性能的影响。