This paper presents a simple and fast method to include the effect of liquid tanks of a vessel in the prediction of the vessel motions. The effects are expressed in terms of modifications to the added mass and stiffness matrices of the vessels calculated with the liquids in the tanks assumed being rigid. The flows in the liquid tanks are solved using a panel method based on the desingularized boundary integral equations (DBIEs). The numerical results were validated by the experiments of a square tank partially filled. An application example for a vessel with two internal liquid tanks is demonstrated.

Issue Section:
Offshore Technology
Topics:
Vessels, Flow (Dynamics)

References

1.
Zalar
,
M.
,
Diebold
,
L.
,
Baudin
,
E.
,
Henry
,
J.
, and
Chen
,
X. B.
,
2007
, “
Sloshing Effects Accounting for Dynamic Coupling Between Vessel and Tank Liquid Motion
,”
ASME
Paper No. OMAE2007-29544.
2.
Malenica
,
S.
,
Zalar
,
M.
, and
Chen
,
X. B.
,
2003
, “
Dynamic Coupling of Seakeeping and Sloshing
,” ISOPE-2003, Paper No. 2003-JSC-267.
3.
Molin
,
B.
,
Remy
,
F.
,
Rigaud
,
S.
, and
de Jouette
,
Ch.
,
2002
, “
LNG-FPSO’s: Frequency Domain, Coupled Analysis of Support and Liquid Cargo Motions
,”
IMAM Conference
,
Rethymnon
,
Greece
.
4.
Lee
,
C. H.
,
2007
,
WAMIT Users’ Manual Version 6.3
, WAMIT, Inc.
6.
Newman
,
J. N.
,
2005
, “
Wave Effects on Vessels With Internal Tanks
,”
20th Workshop on Water Waves and Floating Bodies
, Spitsbergen, Norway, May 29–June 1.
7.
Cao
,
Y.
,
Schultz
,
W. W.
, and
Beck
,
R. F.
,
1991
, “
Three-Dimensional Desingularized Boundary Integral Methods for Potential Problems
,”
Int. J. Numer. Methods Fluids
,
12
(
8
), pp.
785
–
803
.
Google Scholar
Crossref
Search ADS
 
8.
Journee
,
J. M. J.
,
2001
, “
Theoretical Manual of SEAWAY (Release 4.19, 12-02, 2001)
,” Delft University of Technology, Ship Hydromechanics Laboratory, The Netherlands,
Report No. 1216a
.
9.
Bosch
,
J. J. V. D.
, and
Vugts
,
J. H.
,
1966
, “
Roll Damping by Free Surface Tanks
,” Netherland Ship Research Center TNO, Shipbuilding Department, Delft, The Netherlands, Technical Report No. 83-S.
Copyright © 2016 by ASME
You do not currently have access to this content.