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IJME 340

Paper title: Vertical and Sloped Bank Effects on Different Ship Types



Dong-Taur Su, Department of Shipping Technology, National Kaohsiung Marine University, Kaohsiung, Taiwan


This study employed computer design software to completely draft 3D ship models; then, computational fluid dynamics were used to establish numeric navigation channels and simulate fluid hydrodynamic analysis of ships navigating along shore banks. The parameters considered comprised bank type (vertical and sloped), ship model (two types), velocity, ship-to-bank distance, and navigation time. Figures and tables were used to present the distribution of ship stern eddy current, flow field pressure, and velocity, and the comparison of center of mass deviation, sway force, and yaw moment. Results showed that ships navigating along embankments and channels produced asymmetric flows, which draw the bow away from the shore. Larger ships are substantially more influenced by bank effects than smaller ships. Large sway forces and yaw moments are produced in large ships, drifting the bow away from the bank and the stern towards the bank, increasing the risk of collision with the embankment. From the study results, the characteristics of bank effects are understood and can be used for assisting the safe navigation of ships in restricted waters


Transactions RINA, Vol 157, Part A3, International Journal Maritime Engineering, Jul-Sep 2015 

DOI Number

DOI No: 10.3940/rina.ijme.2015.a3.340

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