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RANS prediction of FLNG-LNG hydrodynamic interactions in steady current


Jin, Y and Chai, S and Duffy, J and Chin, C and Bose, N and Templeton, C, RANS prediction of FLNG-LNG hydrodynamic interactions in steady current, Applied Ocean Research, 60 pp. 141-154. ISSN 0141-1187 (2016) [Refereed Article]

Copyright Statement

Copyright 2016 Elsevier Ltd.

DOI: doi:10.1016/j.apor.2016.09.007


The hydrodynamic interaction between a floating liquefied natural gas system (FLNG) and a liquefied natural gas carrier (LNG) has been studied in steady current using a Reynolds Averaged Navier-Stokes solver. A double body approximation method is adopted to investigate the hydrodynamics of the two vessels in close proximity neglecting the free surface effects. Initially, five benchmark ship–ship interaction cases combining different flow speeds, drafts and relative positions are replicated. Comparisons with measured test data and with computational results from literature are made, suggesting the flow field, pressure distribution and forces and moments acting on the hulls are well predicted. Using the validated numerical setup, systematic computations on the hydrodynamic interactions of the FLNG-LNG offloading system have been carried out in steady current. The forces and moments on the hulls with varying relative longitudinal and lateral separations are estimated and explained. Furthermore, full scale computations are conducted to quantify scale effects existing in the present study. From the obtained results, scale effects are evident in the surge force but found to be much less influential in the sway force, roll moment and yaw moment predictions for the cases tested.

Item Details

Item Type:Refereed Article
Keywords:Reynolds averaged Navier-Stokes equations, FLNG-LNG interaction, hydrodynamic forces and moments, scale effects
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Ocean engineering
Objective Division:Energy
Objective Group:Mining and extraction of energy resources
Objective Field:Oil and gas extraction
UTAS Author:Jin, Y (Mr Yuting Jin)
UTAS Author:Chai, S (Professor Shuhong Chai)
UTAS Author:Duffy, J (Associate Professor Jonathan Duffy)
UTAS Author:Chin, C (Dr Chris Chin)
UTAS Author:Bose, N (Professor Neil Bose)
UTAS Author:Templeton, C (Mr Cameron Templeton)
ID Code:111693
Year Published:2016
Web of Science® Times Cited:15
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2016-09-29
Last Modified:2017-11-02

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