Abstract
Except for the ice-breaking capacity in the polar regions, a Polar Research Vessel (PRV) should also have good navigation performance in open water. Three conventional ships are used for comparison to study the added resistance and vertical motions of PRV systematically. Computations was based on the three-dimensional full nonlinear time domain potential flow theory. The method was validated against scale model tests of KCS containership and high accuracy was obtained. Effects of ship type, ship speed and wave steepness on added resistance of PRV were analyzed. The added resistance in waves of PRV is more significant than that of conventional ships. The variation trend of added resistance of PRV is consistent with that of conventional ships. However, added resistance of PRV is not an exact quadratic relation to wave amplitude.
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