Characteristics of Slamming Pressure and Force for Trimaran Hull

In this paper, the characteristics of impact pressure and force a trimaran section was studied by Computational Fluid Dynamics (CFD). The time domain features slamming or showed strong correlation with penetration depth regardless specific ways water entry. effects velocity acceleration on were analyzed. It found that initial main hull wet-deck predominantly affected entry velocities, whilst had almost no effect for impact. presented quadratic relation pressure/forces, between pressure/force linear. These consistent patterns implied analytical models such as Wagner MLM (Modified Logvinovich model) theories.