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Experimental study of wave induced loads and motions on FLNG in head and oblique sea waves

Citation

Jin, Y and Chai, S and Duffy, J and Chin, C and Bose, N, Experimental study of wave induced loads and motions on FLNG in head and oblique sea waves, Proceedings of the ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2016), 19-24 June 2016, Busan, South Korea, pp. 1-10. ISBN 978-0-7918-4993-4 (2016) [Refereed Conference Paper]


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Copyright Statement

Copyright 2016 ASME

DOI: doi:10.1115/OMAE2016-54811

Abstract

In the past decade, an innovative concept, the floating liquefied natural gas (FLNG) system has been developed as a more effective solution over conventional pipelines for exploiting offshore natural gas resources. Understanding the hydrodynamic behaviour of such a mega structure in a real seaway is essential for determining its performance as well as evaluating the operabilities of on-board facilities and safe offloading.

In this paper, experimental study on the hydrodynamic performance of a generic FLNG hull form has been presented. The 1:100 scale model was tested in the Australian Maritime College model test basin for head sea and oblique sea conditions at zero forward speed. The wave induced loads and motions were measured by load cells and linear variable differential transducers (LVDTs) respectively. Experimental uncertainties on each of the measured variables were studied by taking partial differentiations on the uncertainty sources. The time history measurements were decomposed by Fourier series for obtaining frequency domain force/moment and motion transfer functions. The results were compared with numerical solutions from potential flow and Reynolds-Averaged NavierStokes (RANS) solvers. A good correlation between the experimental and numerical results has been demonstrated.

Item Details

Item Type:Refereed Conference Paper
Keywords:FLNG, hydrodynamics, experimental study, transfer functions
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
Author:Jin, Y (Mr Yuting Jin)
Author:Chai, S (Associate Professor Shuhong Chai)
Author:Duffy, J (Dr Jonathan Duffy)
Author:Chin, C (Dr Chris Chin)
Author:Bose, N (Professor Neil Bose)
ID Code:109753
Year Published:2016
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2016-06-29
Last Modified:2017-10-31
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