Improvements of model-test method for cavitation-induced pressure fluctuation in marine propeller

Although the prediction of propeller cavitation-induced pressure fluctuation strongly depends on the model-scale measurement in a cavitation tunnel, there is still a lack of correlation with full-scale data. This paper deals with the enhancement of such a correlation deficiency by improving the conv...

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Bibliographic Details
Published in:Journal of hydrodynamics. Series B 2013-09, Vol.25 (4), p.599-605
Main Authors: LEE, Jeung-Hoon, HAN, Jae-Moon, PARK, Hyung-Gil, SEO, Jong-Soo
Format: Article
Language:English
Subjects:
boundary layer
Cavitation
Computational fluid dynamics
Correlation analysis
Engineering
Engineering Fluid Dynamics
Fairings
Fluctuation
Hydrology/Water Resources
Mathematical models
Numerical and Computational Physics
Propellers
resonance
Simulation
Tunnels (transportation)
压力波动
气蚀
波动模型
船用螺旋桨
试验技术
试验方法
调整模型
边界层效应
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Summary:Although the prediction of propeller cavitation-induced pressure fluctuation strongly depends on the model-scale measurement in a cavitation tunnel, there is still a lack of correlation with full-scale data. This paper deals with the enhancement of such a correlation deficiency by improving the conventional model-test technique, two majors of which are in the following. One is to take into account the boundary layer effect of wooden fairing plate at the ceiling of water cavitation tunnel. The other is to avoid the resonance frequency range of model-ship via adjusting the revolution speed of model propeller. Through a case study, for which both model and full-scale test data are available, the improved method in this study shows its validness, and furthermore a close correlation with full scale measurement.
ISSN:1001-6058
1878-0342
DOI:10.1016/S1001-6058(11)60401-1