Effect of the number of blades on propeller wake evolution

被引:97
作者
Felli, Mario [1 ]
Guj, Giulio [2 ]
Camussi, Roberto [2 ]
机构
[1] Italian Ship Model Basin, INSEAN, I-00128 Rome, Italy
[2] Roma Tre Univ, Dept Mech & Ind Engn, I-00146 Rome, Italy
关键词
Vortex; Turbulent Kinetic Energy; Advance Ratio; Transition Wake; Propeller Model;
D O I
10.1007/s00348-007-0385-0
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The effect of the number of blades on wake evolution was investigated on three propellers having the same blade geometry but different numbers of blades. The experiments concerned velocity measurements along nine transversal planes of the wake by LDV phase-sampling techniques. The study was performed with all the propellers having the same tip vortex intensity. In addition, high-speed visualizations were carried out to analyze the main features of propeller wake evolution in the transition and in the far wake. Aspects concerning wake evolution were pointed out, with particular emphasis on the instability mechanism of the propeller slipstream and on its correlation with the blade-to-blade interaction phenomenon.
引用
收藏
页码:409 / 418
页数:10
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