Numerical investigation of unsteady cavitating turbulent flow around a full scale marine propeller
This paper treats the unsteady cavitating turbulent flow around a full scale marine propeller operated in non-uniform ship wake. The RANS method combined with k-w SST turbulence model and the mass transfer cavitation model was applied for the flow simulation. It is noted that both the propeller performance and the unsteady features of cavitating turbulent flow around the propeller predicted by the numerical calculation agreed well with the experimental data. Due to the non-uniform wake inflow and gravity effect, there occurred periodical procedure for cavity development such as cavitation inception, growth, shrinking, etc near the blade tip for the propeller. The study also indicated that there was considerably large pressure fluctuation near the propeller during the operation. The 1st order frequency of pressure fluctuation predicted by numerical simulation equaled the rotating frequency of propeller blades. Both amplitude and frequency agreed with the experimental results fairly well.
Unsteady cavitation non-uniform wake pressure fluctuation full scale marine propeller
Bin Ji Xian-wu Luo Yu-lin Wu Shu-hong Liu Hong-yuan Xu Akira Oshima
State Key Laboratory of Hydroscience and Engineering,Tsinghua University Beijing,China Ship and Ocean Engineering Laboratory, Mitsubishi Heavy Industries Nagasaki,Japan
国际会议
9th International Conference on Hydrodynamics(第九届国际水动力学会议 ICHD2010)
上海
英文
744-749
2010-10-11（万方平台首次上网日期，不代表论文的发表时间）