Impacts of rudder profiles on ship manoeuvrability

Title

Impacts of rudder profiles on ship manoeuvrability

 Author

Liu, J.
Quadvlieg, F.
Hekkenberg, R.G.

Faculty

Mechanical, Maritime and Materials Engineering

 Department

Marine & Transport Technology

 Date

2015-09-08

 Abstract

The performance of a ship’s rudder largely determines its manoeuvrability, which includes turning ability, initial turning ability, yaw-checking ability and course-keeping ability. However, existing empirical formulas for rudder forces do not concern the rudder profile. This paper discusses the impacts of various rudder profiles on ship manoeuvrability. Instead of empirical formulas for rudder characteristics, Computational Fluid Dynamic methods (CFD) are applied to obtain lift and drag coefficients of five profiles. Then, the normal force coefficient of each profile is calculated and corrected for the aspect ratio. Commercial packages Pointwise and ANSYS ICEM generate the unstructured and structured mesh, respectively. ANSYS Fluent solves the Navier-Stokes equations. 2D steady-state viscous simulations of rudders in incompressible water are carried out with the k-w SST turbulence model. To test the impacts on manoeuvrability, a manoeuvring model is built in Python for the KVLCC2 tanker in deep water. Turning circle manoeuvres and zigzag manoeuvres are performed to compare the manoeuvring parameters. This paper concludes with insights into the impacts of rudder profiles on ship manoeuvrability.

 Subject

ship rudders
RANS simulations
rudder profiles
ship manoeuvrability

 To reference this document use:

http://resolver.tudelft.nl/uuid:742d34f8-f9a1-4296-bd96-93b81e2ffc9c

 Source

MARSIM 2015, Newcastle University, UK, 8-11 September 2015

 Part of collection

Institutional Repository

 Document type

conference paper

 Rights

(c) 2015 The Author(s)
Files
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