INTERACTION MODEL OF MOORED BUOY AND BREAKING WAVE BASED ON LAGRANGIAN PARTICLE METHOD

When a mooring chain is broken due to a high wave, a moored ship can be drifted and stranded. In order to attenuate damages to facilities in a port, it is important to predict the movement of a moored floating object driven by high waves. In some previous numerical methods for this kind of prediction, it was difficult to simulate a floating object appropriately under high waves including a fragmentation and a coalescence of water like a breaking wave. On the other hand, the particle method is suitable for analysis under such a complicated water surface change. Therefore, in this study, a simulation model of moored buoy based on a particle method is developed.