Numerical Simulation of Deck Waves of Container Vessel Based on Numerical Viscous Wave Tank

Yi Liu , Renqing Zhu, Lefei Li, Yu Zhang, Miao Xia

When a vessel is sailing in rough wave, the large relative movement between the structure and the waves will cause the waves to flood the deck. Deck waves will cause damage to the deck equipment and destroy the integrity of the structure. This condition will not only lead to the loss of economic property, but will also cause serious casualty. The waves on the deck will cause a huge slamming load on the vessel, causing the structure of the bow deck to be damaged by the impact of the water and even causing the entire hull to sink. Therefore, it is very important to analysis the deck wave and study the wave law on the bow deck and structure on the upper deck. When we design civilian or military ships, deck wave is an important factor to structure of vessel, personnel safety and ship performance. In the paper, the container ship is modelled by CAD software and the mesh of wave tank is generated by HEXPRESS function, which is based on Fine/Marine’s adaptive mesh generation technology. In addition to this, numerical model simulates the motion response of the container ship under different wave amplitude and vary ship’s speed in regular wave. Moreover, the variation law of the wave phenomenon on the deck is analysed. Through this research, it is found that the waves on the deck will have a severe impact on the vessel's deck and the equipment on the upper deck. The well-designed wave-stopping structure can effectively reduce the impact of the water body on the structure.

https://dx.doi.org/10.31873/IJEAS/6.4.2019.11