Numerical Model of Constrained Wave Energy Hyperbaric Converter under Full-Scale Sea Wave Conditions

A 2D numerical investigation of the power absorption a constrained wave energy hyperbaric converter (WEHC) under full-scale sea conditions is presented. fully non-linear model DualSPHysics, based on coupling smoothed particle hydrodynamics (SPH) fluid solver with multibody dynamics solver, used to interaction between and WEHC sub-systems. The was first validated against experimental data for similar device, good accordance PTO position velocity. then employed study considering several states, different hydraulic take-off (PTO) damping breakwater geometries. It observed that capture width ratio (CWR) particularly sensitive variations in damping, although CWR absolute maximum less mild applied damping. Both height period have an important effect CWR. geometry also essential performance WEHC, decrease about 15% porous breakwater. These results are necessary understand behaviour WEHC.