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http://dx.doi.org/10.3744/SNAK.2015.52.6.494

A Study on the Manoeuvrability of KVLCC2 in Shallow Water by Free Running Model Test  

Yun, Kunhang (Korea Research Institute of Ships & Ocean Engineering)
Yeo, Dong Jin (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.52, no.6, 2015 , pp. 494-500 More about this Journal
Abstract
It has been reported that a ship sailing in shallow water possesses better straight-line stability due to the change of fluid flow around the ship. This tendency affects manoeuvring characteristics of the ship. To investigate this phenomenon, indoor free running model test(FRMT) on KVLCC2 was carried out in three water depth conditions(H/T = 1.2, 1.5 & 2.0). Turning circle tests(± 35° ) and zigzag tests(± 20° /5° and ± 20° /10° ) were conducted with newly developed indoor FRMT system, and the manoeuvring results were compared with test results from other institutes. As the water depth decreased, the yaw rate of the ship decreased, and the distances of circular trajectories at the same heading angle increased in the turning circle tests. The first overshoot angles of the zigzag tests decreased. From both tests, the time for course change increased as the water depth decreased. These manoeuvring characteristics show that KVLCC2 in shallow water becomes more stable in terms of straight-line stability.
Keywords
Shallow water; KVLCC2; FRMT; Manoeuvrability;
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Times Cited By KSCI : 1  (Citation Analysis)
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