Bottom hinged Oscillating Wave Surge Converters (OWSCs) are ef cient devices for extracting power from ocean waves. There is limited knowledge about wave slamming on such devices. This paper deals with numerical studies of wave slamming on an oscillating ap to investigate the mechanism of slamming events. In our model, the Navier-Stokes equations are discretized using the Finite Volume method with the Volume of Fluid (VOF) approach for interface capturing. Waves are generated by a ap-type wave maker in the numerical wave tank, and the dynamic mesh method is applied to model the motion of the oscillating ap. Basic mesh and time step re nement studies are performed. The ow characteristics in a slamming event are analysed based on numerical results. Various simulations with different ap densities, water depths and wave amplitudes are performed for a better understanding of the slamming.
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