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Ocean waves are a significant source of inexhaustible, non-polluting energy. Waves are caused by the wind blowing over the surface of the ocean. In many areas of the world, the wind blows with enough consistency and force to provide continuous waves. A variety of technologies have been proposed to capture the energy from waves, and they differ in their orientation to the waves with which they are interacting and in the manner in which they convert the energy of the waves into other energy forms. Wave energy converters provide a means of transforming wave energy into usable electrical energy. Point absorbers are one type of wave energy converter that have small dimensions relative to the incident wavelength. They can capture wave energy from a wave front that is larger than the dimensions of the absorber. The hydrodynamic problem of the water impact of three-dimensional buoys is investigated by the explicit finite element method with a CEL solver. The fluid is solved by using an Eulerian formulation, while the structure is discretized by a Lagrangian approach. In this work, different kinds of three-dimensional structures, including a hemisphere, are considered. Us-Up equations for water and ideal gas formulation for air have been used to define material behavior. During the analysis projectile penetrated the water, and the water splash was obvious. You can see some figures of the results below
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