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Hydrodynamic interaction effects on tugs operating within the midship region alongside large ships


Jayarathne, N and Leong, Z and Ranmuthugala, D, Hydrodynamic interaction effects on tugs operating within the midship region alongside large ships, Proceedings of the 9th International Research Conference of KDU, 8-9 September 2016, Ratmalana, Sri Lanka, pp. 1-7. (2016) [Refereed Conference Paper]

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This paper presents the findings of a numerical and experimental study to investigate the interaction effects induced on a tug operating within the midship region of a large ship at varying drift angles and lateral distances between the vessels. The non-dimensional interaction forces and moment coefficients determined for the tug are used to create a novel Hydrodynamic Interaction Region Plot (HIRP) to identify the variation of these coefficients with respect to the tug’s drift angle and relative lateral distance to the larger ship. The results identify the drift angle range for the tug required for a safe approach towards the midship of the larger ship, ensuring the least interaction induced lateral force and yaw moment in order to minimise collision risk.

Item Details

Item Type:Refereed Conference Paper
Keywords:ship-tug interaction, drift angles, hydrodynamic interaction region plot
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Marine engineering
Objective Division:Transport
Objective Group:Water transport
Objective Field:Water transport not elsewhere classified
UTAS Author:Jayarathne, N (Dr Nirman Sembukutti Vidanelage)
UTAS Author:Leong, Z (Dr Zhi Leong)
UTAS Author:Ranmuthugala, D (Professor Dev Ranmuthugala)
ID Code:114866
Year Published:2016
Deposited By:Seafaring and Maritime Operations
Deposited On:2017-03-01
Last Modified:2017-10-19

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