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URANS prediction of ship hydrodynamics in head sea waves at zero forward speed with model testing validation

Citation

Jin, Y and Chai, S and Duffy, J and Chin, C and Bose, N and Sun, L, URANS prediction of ship hydrodynamics in head sea waves at zero forward speed with model testing validation, Proceedings of the ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2016), 19-24 June 2016, Busan, South Korea, pp. 1-9. ISBN 978-0-7918-4993-4 (2016) [Refereed Conference Paper]


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Copyright Statement

Copyright 2016 ASME

DOI: doi:10.1115/OMAE2016-54295

Abstract

The paper presents computations on predicting the hydrodynamics of a generic floating liquefied natural gas (FLNG) hull form in regular head sea waves using unsteady Reynolds-Averaged Navier-Stokes (URANS) solver StarCCM+. Initially, model scale simulations were conducted at model test basin water depth (d = 0.8m), with detailed verification and validation study performed to estimate numerical uncertainties. The simulation results were compared with potential flow solutions and validated against experimental studies. Using the verified numerical setup, ship hydrodynamics including wave induced loads, moments as well as ship motion responses in deep water waves(d = 8.0m) have been studied. The computed time history results were decomposed by Fourier series to obtain force/moment and motion transfer functions on the frequency domain. From the obtained results, the presented URANS approach demonstrates slightly better accuracy compared with potential flow (PF) solutions. It is also found that water depth has great influences on the computed wave force and ship motion transfer functions for certain range of wave frequencies.

Item Details

Item Type:Refereed Conference Paper
Keywords:seakeeping performance, unsteady Reynolds-Averaged Navier-Stokes, transfer functions, zero forward speed
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:109751
Year Published:2016
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2016-06-29
Last Modified:2017-10-31
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