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Experimental investigation of sloshing effect on the hydrodynamic responses of an FLNG system during side-by-side operation

Lookup NU author(s): Professor Zhiqiang Hu



This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


This study experimentally examined the effect of sloshing on the hydrodynamic responses of FLNG (floating liquefied natural gas) systems during side-by-side operation. Decay, white noise and irregular wave tests with wind and current were conducted. To determine the influence of sloshing, the vessels were ballasted with solid and liquid cargo. Wave probes were installed in the tanks to determine the free surface elevation. The results show that sloshing has a pronounced effect on the roll motion and the relative sway motion. During side-by-side operation under this liquid ballast conditions, the ranges of the roll motion and the relative sway motion were reduced. The maximum tension on the hawsers or fenders and the collision frequency of the fenders also decreased. These results indicate that under this liquid loading condition, sloshing can have a beneficial effect on the motions and the induced loads of the connected system. This information will be helpful for carrying out the numerical calculation and also for optimising the operation of FLNG systems.

Publication metadata

Author(s): Xu Q, Hu Z, Jiang Z

Publication type: Article

Publication status: Published

Journal: Ships and Offshore Structures

Year: 2017

Volume: 12

Issue: 6

Pages: 804-817

Online publication date: 02/01/2017

Acceptance date: 16/12/2016

Date deposited: 08/02/2017

ISSN (print): 1744-5302

ISSN (electronic): 1754-212X

Publisher: Taylor and Francis Group


DOI: 10.1080/17445302.2016.1274577


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