Numerical Simulation and Experimental Analysis of Two-Dimensional Wedge-Shaped Structure’s Water Entry with Boulder Impact

With the rapid development of ships, the problem of bow slamming becomes very prominent. In this paper, based on the impact test data of water entry, a two-dimensional wedge shape test model was established by ANSYS/LS-DYNA finite element software, and simulation analysis was carried out on the model, focusing on the impact of different oblique lifting Angle and water entry speed on the impact load, the change of pressure during the impact process and the liquid level lifting phenomenon of the structure during water entry. The results show that when the wedge contacts the water surface, the slamming pressure increases instantly, then decreases gradually and becomes stable. With the decrease of tilt Angle and the increase of water entry velocity, the slamming pressure increases obviously, and the vertical slamming force also increases. When the inclined rise Angle is small, the peak value of the slamming pressure obtained by numerical simulation and impact test has a slight deviation. In this case, the thinner jet needs to be simulated with a denser grid. The research results can provide a reference for related research.