Experimental investigation on the hydrodynamic performance of a multi-chamber OWC-breakwater

The multi-chamber Oscillating Water Column (OWC) device has recently become more attractive due to its potential high efficiency. In this paper, the hydrodynamic performance of a single-, dual- and triple-chamber OWC-breakwater are investigated experimentally. first instance, quantitative comparisons implemented understand OWC-breakwaters. Specific attention been dedicated capture width ratio (CWR), reflection coefficient, transmission dissipation coefficient effective frequency bandwidth. investigation identified various findings that can be summarized as follows: i) interactions between chambers in OWC improved wave power extraction characteristics; ii) comparing with conventional pontoon breakwater, showed better attenuation longer waves; iii) steepness is important for evaluating multiple-chamber device; iv) implementation scheme broadens bandwidth (satisfied condition K T < 0.5 η > 0.2) OWC-breakwater. • Hydrodynamic Enhancement efficiency achieved by implementing multiple chambers. Wave system superior breakwater.