Numerical Study Of The Influence Of U-Shaped Walls On Energy Capture Property Of Owc Wave Energy Devices

In this paper, a two-dimensional numerical wave flume has been established based on the incompressible viscous fluid theory and by using STAR-CCM + software, verifying the convergence and accuracy of the numerical flume. By building a numerical model for the interaction between waves and U-OWC devices, this paper studies the influence of each major control parameter on the wave energy capture efficiency of U-OWC wave energy devices. The research results show that the height of U-shaped walls has a great impact on the wave energy capture efficiency of the devices and that proper U-shaped wall height can enhance the wave energy capture efficiency; the distance between the U-shaped wall and the anterior wall of air chamber as well as the inclination of U-shaped walls also have a large effect on the hydrodynamic property of the devices, and appropriate distance between the U- shaped wall and the anterior wall of air chamber and correct inclination of U-shaped walls can increase the wave energy capture efficiency of U-OWC devices to a certain extent.