An Investigation Into The Coupling Of Sloshing Effect Due To Translation Force Of Flng Motions

Luhut Tumpal parulian, I Ketut Aria Pria Utama, Aries Sulisetyono


The motion of FPSO fluid inside gas carrier is normally restricted by loading condition of the vessel, whether the vessel is operated at near empty condition or under 30 % from fully loaded condition. In this way, resonance or sloshing effects of the fluid on the FPSO’s hull are limited. However, nowadays the FPSO carriers are considered to be operated at intermediate loading condition and also during the production. In this condition, the FPSO is more likely to be induced into resonance due to wave action and FPSO motion. This resonance or sloshing behavior of the FPSO leads to high impact pressure on hull storage construction. A theory based on gas dynamics for shock wave in a gas flow has been used to describe the motion of the fluid. Then, a linier potential theory as used in strip theory ship motion. The current paper describes a study model experiment in Maneuvering & Ocean Engineering Basin (M.O.B) at the Indonesian  Hydrodynamic Laboratorium. It  uses a wooden barge at  scale of 1 : 70, together with various wave heading, amplitude and period. Using high speed video camera, the wave front formed by the bore of the FPSO in resonance is observed and the impact to the tank hull is measured.


Non- Linier Hydrodynamic; Sloshing; Impact; Motion

Full Text:



O.M. Faltinsen, “A numerical non-linear method of sloshing in tanks with two-dimensional flow,” J Ship Research 18, pp. 224-241, 1978.

O.M. Faltinsen and O.F. Rognebakke, “Sloshing, Int. Conf. on Ship and Shipping Research,” NAV. Venice: Italy, 2000.

T.J. Bridges, “A numerical simulation of large amplitude sloshing,” Proc. of the 3rd Int. Numerical Ship Hydrodynamics, Paris, France, 1982.

N.E. Mikelis, “Sloshing in partially filled liquid tanks and its effect on ship motions: Numerical simulations and experimental verification. RINA Spring meeting, London, 1984.

G.X. Wu, Q.M. Ma, and R. Eatock-Taylor, “Numerical simulation of sloshing waves in a 3D tank based on a finite element method,” Applied Ocean Research 20, 1998, pp. 337-355.

Y. Kim, “Numerical simulation of sloshing flows with impact load,” Applied Ocean Research 23, 2001, pp. 53-62.

Y. Kim, Y.S. Shin, and K.H. Lee, “Numerical study on slosh-induced impact pressures on three-dimensional prismatic tanks,” Applied Ocean Research 26, 2004, pp. 213-226.

J.J. Monaghan, “Simulating Free Surface Flows with SPH,” Jour Computational Physics 110, pp. 399-406, 1994.

J. Dillingham, “Motion studies of a vessel with water on deck,” Marine Technology 18,1981.

Y. Kim, “A numerical study on sloshing flows coupled with ship motion-the anti-rolling tank problem,” Journal of Ship Research 46, pp. 52-62. 2002.

O.F. Rognebakke, and O.M. Faltinsen, “Coupling of sloshing and ship motions,” Jour Ship Research 47, pp. 208-221. 2003.

Final Report No: IHL-BPPT/C073/IX/2010, J. 2010 IHL model test no: 0113 FLNG Vessel.

L.T.P. Sinaga, I.K.A.P. Utama, and A. Sulissetyono, “Simplified model of heave and pitch motion of an FLNG due to sloshing effect and comparison some experiment results,” Proceeding of the 13th International conference on QIR013, Jokjakarta, 2013.

L.T.P. Sinaga, I.K.A.P Utama., and A. Sulisetyono., “An investigation in to coupling of sloshing, effect on a FLNG motion,” Proceeding of the 5th international conference on technology and operation of offshore support vessel, (OSV) Singapore, 2013.

L.T.P. Sinaga, I.K.A.P Utama., and A. Sulisetyono., “Experimental and Numerical Invertigation Into Sloshing Effect Due to Coupled Heave and Pitch Motion of FLNG Vessel,” on IJTR,USA, 2014.



  • There are currently no refbacks.

Creative Commons License

IPTEK Journal of Science and Technology by Lembaga Penelitian dan Pengabdian kepada Masyarakat, ITS is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Based on a work at