Research on the Hydrodynamic and Cavitation Performance of Semi-Balanced Twisted Rudders

In this study, we designed a new, semi-balanced, twisted rudder to reduce the surface cavitation problem of medium-high-speed surface warships. Based on the detached eddy simulation (DES) with the Spalart-Allmaras (SA) model (SA-DES) and the volume of fluid (VOF) method, the hydrodynamic and cavitat...

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Bibliographic Details
Published in:Journal of marine science and application 2023-09, Vol.22 (3), p.488-498
Main Authors: Ye, Jinming, Zhang, Di, Zhang, Xianfeng, Zou, Xiaoyu
Format: Article
Language:English
Subjects:
Cavitation
Computational fluid dynamics
Defence craft
Detached eddy simulation
Electrical Machines and Networks
Engineering
Fluid dynamics
Geotechnical Engineering & Applied Earth Sciences
Hydrodynamics
Machinery and Machine Elements
Manoeuvrability
Mathematical models
Offshore Engineering
Power Electronics
Research Article
Rudders
Structured grids (mathematics)
Working conditions
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Summary:In this study, we designed a new, semi-balanced, twisted rudder to reduce the surface cavitation problem of medium-high-speed surface warships. Based on the detached eddy simulation (DES) with the Spalart-Allmaras (SA) model (SA-DES) and the volume of fluid (VOF) method, the hydrodynamic and cavitation performances of an ordinary semi-balanced rudder and semi-balanced twisted rudder at different rudder angles were numerically calculated and compared using the commercial computational fluid dynamics (CFD) software STAR-CCM+ with the whole-domain structured grid. The calculation results showed that, under the same working conditions, the maneuverability of the semi-balanced twisted rudder basically remained unchanged compared with that of the ordinary semi-balanced rudder. Furthermore, the surface cavitation range of the semi-balanced twisted rudder was much smaller, and the inception rudder angle of the rudder surface cavitation increased by at least 5° at the maximum speed. In conclusion, the semi-balanced twisted rudder effectively reduced the cavitation of the rudder surface without reducing the rudder effect and exhibited excellent anti-cavitation performance.
ISSN:1671-9433
1993-5048
DOI:10.1007/s11804-023-00350-w