基于重叠网格的反转毂帽鳍螺旋桨数值模拟研究
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中图分类号：U664.33 文献标志码：A
本文引用格式：.基于重叠网格的反转毂帽鳍螺旋桨数值模拟研究[J].华东交通大学学报，2025，42（6）：110-120.
Numerical Simulation of Contra-Rotating Propeller Boss Cap FinsUsing Overset Grid Method
Zhu Wencai， Li Zhirong，Hu Guoliang
（SchoolofMechatronicsandVehicleEngineering，EastChina Jiaotong University，Nanchang330o13，China）
Abstract： By comparing the open-water characteristics and cavitation characteristics between the contra-rotating propeller boss cap fins （CRPBCF） propeler and the benchmark propellr， this paper investigates the influenceof CRPBCF on the hydrodynamic performance of propelers.The CRPBCF model was constructed through geometric transformation of VPl304 propeler blades.Numerical simulations were conducted using the overset grid technique and large eddy simulation （LES） in STAR- CCM+ . The computational results were validated against experimental data，demonstrating good accuracyandreliability.The results demonstrate that the CRPBCF propeller exhibits superior hydrodynamic performance compared to the benchmark propeller. At an auxiliary propeller speed of na=37.5r/s ，it achieves maximum efficiency gains of 4.18% and thrust improvements up to 7.28% . In terms of cavitation characteristics，a distinct vapor volume fraction isosurface of 20% is clearly observed in the wake flow of the benchmark propeler， whereas no such phenomenon was observed for the CRPBCF propeller. This demonstrates that CRPBCF can effctively suppressthe generation of hub vortex cavitation （HVC）.In summary，the results demonstrate that the CRPBCF propeler not only enhances propulsive efficiency but also delivers greater thrust under low advance coefficient conditions while effectively suppressing the occurrence of HVC.
Key Words：CRPBCF propeller;overset grid method; LES; hub vortex cavitation Citation format： ZHU W C，LI ZR，HUG L.Numerical simulation of contra-rotating propeller boss cap fins using overset grid method[J].Journal ofEast China Jiaotong University，2025，42（6）：110-120.
螺旋桨是船舶推进系统的核心部件，其性能优化对船舶能效提升和环保减排具有重要意义。（剩余12806字）
