A Numerical Study on Hydrodynamic Energy Conversions of OWC-WEC with the Linear Decomposition Method under Irregular Waves

A numerical study was performed to investigate the applicability of linear decomposition method for hydrodynamic energy conversion an oscillating-water-column type wave converter (OWC-WEC). Hydrodynamic problems OWC chamber were decomposed into excitation and radiation with time-domain based on potential theory. finite element applied solve flow in entire fluid domain including structure. The validity examined by comparing direct interaction turbine–chamber pressure drop characteristics. In order estimate performance under irregular waves, response spectrum transfer function method. Under various conditions, pneumatic power OWC-WEC calculated agreed well simulation results.