Journal of Shanghai Jiao Tong University ›› 2021, Vol. 55 ›› Issue (8): 976-983.doi: 10.16183/j.cnki.jsjtu.2020.211

Special Issue: 《上海交通大学学报》2021年“交通运输工程”专题 《上海交通大学学报》2021年12期专题汇总专辑

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Numerical Simulation of Propeller Cavitation in Non-Uniform Flow

LIU Heng1,2(), WU Rui1,2,3, SUN Shuo1,2   

  1. 1. State Key Laboratory of Navigation and Safety Technology, Shanghai Ship and Shipping Research Institute, Shanghai 200135, China
    2. Key Laboratory of Marine Technology Ministry of Communications, Shanghai Ship and Shipping Research Institute, Shanghai 200135, China
    3. Institute of Chemical Machinery, College of Energy Engineering, Zhejiang University, Hangzhou 310027, China
  • Received:2020-07-06 Online:2021-08-28 Published:2021-08-31


Taking a certain oil tanker propeller as the research object, and using Schnerr-Sauer cavitation model based on Rayleigh-Plesset equation and the realizable k-ε two-layer turbulence model, the cavitation pattern around the propeller in non-uniform flow conditions is simulated by using the computational fluid dynamics (CFD) software STAR-CCM+. Through effective and reasonable mesh densification of the propeller blade tip area, the tip vortex cavitation is successfully captured with a small number of meshes. The comparison between numerical calculation and test results shows that the whole process of cavitation inception, development, and collapse in wake flow can be accurately reproduced. The back-sheet cavitation pattern at each phase angle is in good agreement with the test results and the difference of cavitation area between calculation and the experiment is within 5%. Although the numerical method can capture the tip vortex cavitation, it cannot accurately predict the unsteady characteristics and spatial structure of the tip vortex cavitation. Based on the above results, it can be concluded this numerical methodology is suitable for simulating cavitation flows around propeller in non-uniform flow.

Key words: numerical simulation, non-uniform flow, cavitation, propeller

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