Cavity Formation during Asymmetric Water Entry of Rigid Bodies

This work numerically evaluates the role of advancing velocity on water entry rigid wedges, highlighting its influence development underpressure at fluid–structure interface, which can eventually lead to fluid detachment or cavity formation, depending geometry. A coupled FEM–SPH numerical model is implemented within LS-DYNA, and three types asymmetric impacts are treated: (I) symmetric wedges with horizontal component, (II) a pure vertical (III) component. Particular attention given evolution pressure interface onset wedge tip their effect body dynamics. Results concerning tilting moment generated during presented, varying depth, asymmetry, velocity. The presented results important for evaluation stability slamming events.