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http://dx.doi.org/10.3744/SNAK.2014.51.6.539

Study of Ship Squat for KVLCC2 in Shallow Water  

Yun, Kunhang (Korea Research Institute of Ships & Ocean Engineering)
Park, Kyurin (Korea Research Institute of Ships & Ocean Engineering)
Park, ByoungJae (Korea Research Institute of Ships & Ocean Engineering)
Publication Information
Journal of the Society of Naval Architects of Korea / v.51, no.6, 2014 , pp. 539-547 More about this Journal
Abstract
Ship squat is a well known phenomenon, which means an additional sinkage and a change of trim when a ship sails in shallow water. As a series of ship squat study, a HPMM(Horizontal Planar Motion Mechanism) test of KVLCC2 model ship to measure a sinkage and a trim in shallow water was conducted. Additionally a CFD(Computational Fluid Dynamics) analysis was carried out to simulate fluid flows around the ship surface. A change in ship speed, drift angle at three depth conditions(H/T = 1.2, 1.5 & 2.0) is considered for comparing these results. As a result, an increase of the ship speed and the drift angle caused an increase in ship squat in EFD(Experimental Fluid Dynamics), and created a lower pressure on the ship bottom area in CFD. Lastly the sinkage results of KVLCC2 by EFD and CFD are compared to results by three empirical formulas. The tendency of sinkage by EFD and CFD is similar to the results of empirical formulas.
Keywords
Squat; Shallow water; KVLCC2; HPMM; CFD;
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Times Cited By KSCI : 2  (Citation Analysis)
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