scholarly journals Numerical Modelling Techniques on Ship-Tug Hydrodynamic Interaction Effects

2020 ◽  
Author(s):  
Nirman Jayarathne ◽  
Zhi Leong ◽  
Dev Ranmuthugala
Keyword(s):  
Numerical Modelling ◽  
Hydrodynamic Interaction ◽  
Interaction Effects ◽  
Modelling Techniques

Evaluations of SWEs and SPH Numerical Modelling Techniques for Dam Break Flows

2013 ◽  
Vol 7 (4) ◽  
pp. 544-563 ◽  
Author(s):  
Jaan Hui Pu ◽  
Songdong Shao ◽  
Yuefei Huang ◽  
Khalid Hussain
Keyword(s):  
Numerical Modelling ◽  
Dam Break ◽  
Modelling Techniques

scholarly journals Hydrodynamic Interaction Effects on Wave Exciting Force in Large Scale Floating Structures

1993 ◽  
Vol 1993 (174) ◽  
pp. 243-251 ◽  
Author(s):  
Koichiro Yoshida ◽  
Hideyuki Suzuki ◽  
Noriaki Oka ◽  
Kazuhiro Iijima ◽  
Takuya Shimura ◽  
...  
Keyword(s):  
Large Scale ◽  
Hydrodynamic Interaction ◽  
Interaction Effects ◽  
Exciting Force ◽  
Floating Structures

Non-Dimensionalisation of Lateral Distances Between Vessels of Dissimilar Sizes for Interaction Effect Studies

2017 ◽  
Vol 159 (A4) ◽  
Author(s):  
N Jayarathne ◽  
D Ranmuthugala ◽  
Z Leong ◽  
J Fei
Keyword(s):  
Interaction Effect ◽  
Hydrodynamic Interaction ◽  
Interaction Effects ◽  
Full Scale ◽  
Correlation Technique ◽  
Effect Data ◽  
Scale Interaction ◽  
Model Scale ◽  
Interaction Studies ◽  
Lateral Distance

To date, most of the hydrodynamic interaction studies between a tug and a ship during ship assist manoeuvers have been carried out using model scale investigations. It is however difficult to establish how well results from these studies represent full scale interaction behaviour. This is further exacerbated by the lack of proven methodologies to non-dimensionalise the relative distances between the two vessels, enabling the comparison of model and full scale interaction effect data, as well as between vessels of dissimilar size ratios. This study investigates a suitable correlation technique to non-dimensionalise the lateral distance between vessels of dissimilar sizes, and a scaling option for interaction effect studies. It focuses on the interaction effects on a tug operating around the forward shoulder of a tanker at different lateral distances during ship assist operations. The findings and the non-dimensioning method presented in this paper enable the interaction effects determined for a given ship-to-tug ratio to be used to predict the safe operational distances for other ship-to-tug ratios.

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