Abstract
In this work, the theoretical hydrodynamic performance of an onshore Oscillating Water Column (OWC) device, subjected to normal wave incidence, is investigated. Based on linear surface-wave theory, the full solution of the boundary value problem (BVP) is obtained by using a three-dimensional (3D) boundary element method (BEM) with nine-noded quadrilateral elements. The method of subdomains is used to solve the BVP by applying the BEM separately to each of its regions, and the continuity of velocity potential and flux are used to match the problem. The capture width, hydrodynamical coefficients and free surface elevations are analysed for different OWC geometric parameters of the chamber. Numerical results for the hydrodynamic performance were found to be in good agreement with cases reported elsewhere. The findings show that the chamber configuration and the linearized air compressibility have a significant impact on the capture width bandwidth, the resonant frequency and the free surface elevation within the chamber.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
