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THE ROLLING MOTION UNDER THE SHIPPING WATER CONDITION

X Huang, Zhen Dong

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Abstract

The paper deals with the problems associated with the effect of shipping water on the rolling of a ship in beam seas. The motion of the deck water is modelled using shallow water equations and solved using Grimm's random choice method. The hydrodynamic forces acting on the ship are determined by a boundary element approach in the time domain. The motions of the ship and deck water are calculated and illustrated graphically. For the sake of simplicity, only a two dimensional case is studied. However, the authors point out that there is no obstacle to extending the calculation to a full scale ship by using the strip method.

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What this paper is about

The paper deals with the problems associated with the effect of shipping water on the rolling of a ship in beam seas. The motion of the deck water is modelled using shallow water equations and solved using Grimm's random choice method. The hydrodynamic forces acting on the ship are determined by a boundary element approach in the time domain. The motions of the ship and deck water are calculated and illustrated graphically. For the sake of simplicity, only a two dimensional case is studied. However, the authors point out that there is no obstacle to extending the calculation to a full scale ship by using the strip method.

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Available abstract

The paper deals with the problems associated with the effect of shipping water on the rolling of a ship in beam seas. The motion of the deck water is modelled using shallow water equations and solved using Grimm's random choice method. The hydrodynamic forces acting on the ship are determined by a boundary element approach in the time domain. The motions of the ship and deck water are calculated and illustrated graphically. For the sake of simplicity, only a two dimensional case is studied. However, the authors point out that there is no obstacle to extending the calculation to a full scale ship by using the strip method.

Key concepts: Deck, Obstacle, Marine engineering, Point (geometry), Waves and shallow water, Motion (physics), Equations of motion, Scale (ratio)

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