Four-DOF Maneuvering Motion of a Container Ship in Shallow Water Based on CFD Approach

With the continuous increase in ship size combined with the generally slower increase in the sizes of waterways, the need for the prediction of ship maneuvering in shallow waterways continues to attract attention from the international scientific community. Ship behavior in shallow water is relevant...

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Bibliographic Details
Published inJournal of marine science and engineering Vol. 12; no. 6; p. 981
Main Authors Nguyen, Tien Thua, Phan, Thanh Long, Le, Tat-Hien, Mai, Thi Loan, Yoon, Hyeon Kyu
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.06.2024
Subjects
Cargo ships
CFD-based simulation
Computational fluid dynamics
container ship
Container ships
Containers
Degrees of freedom
Fluid dynamics
Fluid mechanics
four degrees of freedom
hydrodynamic forces
Hydrodynamics
maneuvering characteristics
Maneuvers
Mathematical models
Movement
Numerical analysis
Ocean floor
Rolling motion
Shallow water
shallow-water effects
Ship handling
Simulation
Simulation methods
Turning behavior
Velocity
Water
Waterways
Germany
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Summary:With the continuous increase in ship size combined with the generally slower increase in the sizes of waterways, the need for the prediction of ship maneuvering in shallow waterways continues to attract attention from the international scientific community. Ship behavior in shallow water is relevant in seabed effects that result in changing the hydrodynamic forces acting on a ship. In this study, the maneuvering characteristics of a container ship with four degrees of freedom in shallow water are analyzed. The Reynolds-Averaged Navier Stokes approach in Ansys Fluent code is used to produce the maneuvering coefficients through the simulations of forward running, static drift, static heel, circular motion, the combined motions, and the pure roll motion of the KRISO container ship. The maneuvering characteristics of the ship are estimated for evaluating the ship behaviors in shallow-water conditions. The obtained results show that the roll has a significant decrease and the ship’s turning diameter has a significant increase when the ship operates in a shallow waterway. The predicted maneuvering characteristics of the ship are in good agreement with those of free-running model tests, indicating that the numerical simulation based on the Computational Fluid Dynamics method has good capability to predict the maneuvering derivatives and the four-DOF ship maneuvering motion in shallow water as well.
ISSN:2077-1312
2077-1312
DOI:10.3390/jmse12060981